A very hot biology lesson

----- Third Period: Biology, Mrs. Sampson -----

Sam felt like she was walking on air as she left Mr. Tristan's class. She could still feel his cock working inside her pussy and ass and every so often as she walked to her next class she had to stop and let out a nice shiver of pleasure. The many stops did almost make her late to her next class, but she did not care. She was not sure yet what naughty antics she'd participate in during her biology class, but she felt it would not be hard to get something going. Her recently re-sprouted cock throbbed as she entered the classroom and was greeted by the sight of her lovely biology teacher, Mrs. Sampson.

Mrs. Sampson turned Sam on quite a bit, just like Miss Davidson. Like Miss Davidson, she was a curvy woman in her mid-thirties. She had bigger breasts than Miss Davidson, but her ass and thighs were smaller. She was also a brunette unlike the other teacher being a blonde. Miss Davidson had a more sexual appeal to her looks, while Mrs. Sampson was more maternal. Like Miss Davidson, she was naked, but her reason wasn't because she liked being naked. Sam's memories of this new world told her that Mrs. Sampson would be dressed right now, as she normally did not go in public naked. Sam soon saw why Mrs. Sampson was naked. Just like Sam's sister, Mrs. Sampson was quite pregnant. It was a sexy sight for Sam, to see another sexy woman naked and pregnant. Just like Jenna, Mrs. Sampson had not been pregnant in Sam's old world. Sam licked her lips at the sight of the pretty teacher's eight months pregnant belly. She wished she could drink from the teacher's tits, knowing that since she was pregnant, Mrs. Sampson's milk would be tastier than most women. Sam considered using her vision to see what turned Mrs. Sampson on, but then decided to add to her fun she'd have to figure it out.

Sam took her seat in the middle of the room, front and center in the teacher's line of sight. She wanted an unobstructed view of the naked, pregnant beauty she was learning from. Mrs. Sampson's appearance was very much like Sam's older sister from being naked and pregnant, but Jenna was presenting with a more youthful pregnancy while Mrs. Sampson's was more mature, not that either did not turn Sam on. The moment she was seated and looking upon her teacher, Sam's left hand trailed under her table and started stroking her cock. She knew she wasn't alone. There were two boys in the class and one other "packing" girl, Kelsey, who were doing the same, and it seemed Mrs. Sampson did not mind, or at least didn't say anything about it. Sam briefly wondered why she was taking biology in this reality when she had taken it as a sophomore, until her new memories told her that in this reality, since biology was a more erotic class now, it was taught to seniors instead.

Once the bell rang, Mrs. Sampson closed the door and ambled to the center of the half-ring of tables around her. The spot she stood in made sure everyone could see her, and despite her preference for being clothed, she did blush a little at the joy of knowing she was turning some of her students on. Sam's eyes were focused right on her teacher's breasts and pregnant belly, and she could swear she saw a drop of milk from one of the teacher's nipples. "Fuck." Sam thought as she slowly stroked, "What I'd give to drink from those tits."

The lesson for today seemed to be an answer to Sam's desires. After looking back and forth through her students, Mrs. Sampson closed her eyes, smiled and began speaking. "Hello class. I hope you are all prepared for today's lesson. Today we will complete our unit on human biology and explore the three unique phenomena of women's bodies. First, that all human women, unlike other female mammals, can spontaneously lactate whether or not they have given birth, that human women naturally lubricate for varied forms of sex and the ability of supposedly all, but some say just some, human women to spontaneously possess male sex organs."

Sam shuddered hearing this. She could not wait to see what this lesson entailed. Mrs. Sampson seemed to be looking right at her and Kelsey. She looked between the two a number of times before looking to Sam. "Samantha, for this lesson I will need a female student who we know to be "packing". I think it best to use the girl who is known to have the biggest "girl-cock" in school." Sam's jaw dropped hearing this and she eagerly stood up, quickly releasing her cock from her hand as she got out of her chair and walked to the center of the classroom. Once she was standing next to the pregnant teacher, which made Sam hot all over again, she watched as the teacher looked her up and down a few times before speaking again. "Please remove your clothes, Samantha. I will need you naked for this lesson." She said as casually as could be. Sam smiled and happily walked back to her seat to remove her top and skirt and then returned, now naked, to the center of the class.

Sam barely noticed as the teacher walked behind her, until she felt the teacher's baby bump touch her back. She blushed deeply when the teacher reached around her and cupped her breasts. Just after she cupped Sam's tits, Sam felt Mrs. Sampson put her lips to Sam's neck and started kissing and nibbling on Sam. The actions from her hot, pregnant teacher made Sam tremble, being kissed and bitten in front of her classmates. Soon, the teacher started kneading and squeezing Sam's breasts until a few drops of her milk started leaking from her nipples. Even as Sam's breasts leaked, Mrs. Sampson did not stop her lustful attention on her pupil. After a few minutes more of tasting Sam, Mrs. Sampson pulled away from Sam's neck. "Now, we all know for a fact that Samantha has not had any children, or at least has not given birth to one. Yet, she is lactating. Human women are the only female mammals that do this. All other female mammals only produce milk after pregnancy, but human women are capable of lactating at will. We have no explanation for why this happens. That all human women lactate has also in modern times lead to a greater demand for women's milk over cow's milk or other animal milks. In fact, unlike just fifty years ago, more of the milk in our grocery stores is breast milk rather than the milk of other animals. The ability of any woman to produce milk is so basic that any of you girls at this moment could do what I did to Samantha and express milk from your breasts."

As she said this, five other girls in the class started playing with their breasts. Two, Kelly and Mindy, were already topless, but the other three, Fiona, Jessie and Melody, quickly lifted their shirts and watched as their breasts began to release milk as they toyed with their own nipples. Sam blushed watching these girls brazenly fondle themselves in class. As Sam happily watched these girls fondle themselves, Mrs. Sampson stepped in front of Sam. She gave Sam a naughty grin and dove headfirst into Sam's tits. Sam quickly felt her teacher's tongue gliding over her tits. Mrs. Sampson's tongue worked over Sam's mounds, the teacher groping Sam hard as she worshipped Sam's rack, then Sam gasped as she felt Mrs. Sampson's tongue bat at her nipple before taking it into her mouth. She greedily drank down Sam's milk and soon switched to Sam's other breast. The whole time, her mouth and tongue, along with her hands, never left Sam's tits. Occasionally the teacher would look up into Sam's eyes. Her naughty and lustful looks told Sam all she needed to know. It was clear to Sam that her teacher was not doing this for class lesson. This was for her own enjoyment.

After spending a few minutes sampling Sam, the teacher turned back to her students to see the five girls who were all expressing their milk in the classroom. As soon as Mrs. Sampson saw this, she had the five girls all come up to join Sam and lined them up, starting with Melody who had the smallest breasts of them all, barely an A-cup, then going up in tit size. Jessie stood next with her B-cups, then Fiona and Kelly were next, both sporting C-cups. Mindy was last, her lovely E-cups on brazen display. Still, none of them were as busty as Sam. The teacher then looked to another girl in the class, Robin, who was pregnant much like she was, and had her come up as well. "Now, every woman's milk is unique in flavor, but somehow the milk of pregnant women has been found to be tastier and more nutritious." The teacher said before pulling out a pitcher and cup of water. "Now, to demonstrate this, I would like for each of you girls who have not been pregnant to sample each other's milk, and then mine and Robin's milk. Please drink some water after each tasting to make sure you can distinguish each flavor."

Sam got hot hearing these words, excitement filling her knowing she'd be sucking on the tits of each of these girls. Sam stood near the end of the lineup, just before Robin and Mrs. Sampson. Each girl took a turn working down the line, sucking on the breasts of the other girls and drinking their milk. For some reason, each girl took more time at Sam's breast than the others. Sam trembled when it was her turn. She could hardly contain her smile as she walked up to each girl, put her lips to their hard nipples and sucked hard to draw out their yummy milk. All through the exercise there were moans in the classroom, both from the girls and from their fellow students as they observed. The six girls then turned to Mrs. Sampson and Robin, and they then proceeded to drink from the breasts of the two pregnant ladies, with Sam being the last one.

Sam and the other girls all drank from Robin first, sucking gently upon her lovely and perky D-cups. Robin moaned through the exercise, as each girl rubbed her baby belly while they drank from her. Each girl then moved on to Mrs. Sampson, with Sam again being the last. Sam's lips were trembling as she prepared to suckle from her teacher. Her eyes shot wide open when she sucked the teacher's luscious, big tits and tasted her milk. Sam was so engrossed in her tasting that Mrs. Sampson had to pull her off. Once all the girls were lined up again, they all watched as Robin took her turn sampling each girl's milk. She spent more time than needed on Sam, loving the taste of Sam's seemingly divine milk. Robin then went to the teacher and happily drank from her fellow preggo, moaning as she drank from her teacher. The class all watched when Robin finished as she then kissed Mrs. Sampson, before the teacher, to everyone's shock, then sampled Robin's milk.

After a few pulls from Robin, Mrs. Samson then surprised the class again as she went down the line sampling her student's milk, purposely ending on Sam. She was not quick with Sam. She spent a good five minutes nursing from Sam, which made Sam giggle. "Naughty teacher." Sam whispered to her. Mrs. Sampson just grinned as she looked up to Sam, never ceasing her nursing. Once she finally finished with Sam's milk, the teacher stood up as she released Sam's nipple loudly. She did not face the class immediately, as she then trailed kisses up Sam's body until she reached Sam's lips. With a grin and no hesitation, Mrs. Sampson put her lips to Sam and made out with her student for a few minutes. Sam had returned in kind, feeling up her teacher as they kissed, her powers telling her that Mrs. Sampson was hot for her student. Sadly, she had a lesson to finish. She soon reluctantly broke her kiss with Sam, then turned to the girls and asked them who had the best tasting milk.

"Sam's milk was the best." Each girl said, "At least of those of us who haven't had babies. You and Robin were still tastier." Mrs. Sampson nodded and sent all the other girls back to their seats. She did not resume teaching immediately. She waited and watched as the girls shared their milk with their fellow students. After five minutes, she called everyone's attention back to Sam and stood behind her. "Our Samantha here is unique. Despite having never been pregnant, her milk is very similar to a pregnant woman's milk. Also, Samantha does not seem to be able to be emptied. I would like each of you to come here and drink from Samantha, now that you've all tasted a few of your classmates." Sam blushed hearing this, but proudly jutted out her big tits and moaned as each student sucked on her breasts and tasted her milk. Everyone seemed to agree that Sam's tasted the best.

"So, as you all have seen, all but two of the women I brought up here have never been pregnant, but all of them instantly made milk for you to drink. We are still not sure why this happens in human women, and we really don't know if we'll ever find out." She said with an air of resignation. "Oh, I know why." Sam thought mischievously.

"Now Samantha, this next part of the lesson may be a bit embarrassing, but I will make it worth your while." The teacher said, breaking Sam from her thoughts. Sam looked to her teacher, a lustful look in the teacher's eyes and sweet honey in her voice. Sam smiled back, knowing exactly what her teacher was planning. As if nothing was out of the ordinary, Mrs. Sampson carried on with the lesson. "So, in another twist of human female biology, some human women are capable of spontaneously sprouting male sex organs. You all have seen that Samantha possess very feminine breasts, as you have all tasted her milk, yet you also see that she is currently "packing" as she has a fully functional penis and testicles." The teacher said as she waved her hands over Sam's tits and cock. "Now Samantha, would you please turn around." Sam did so and then she felt the teacher's hands on her hips and back, bending Sam forward, then spreading her legs apart, leaving Sam with her ass, pussy, balls and cock lewdly displayed to the class.

"As you can see, despite the fact that Samantha is biologically female, she is right now equipped with a full set of male sex organs and internals." Mrs. Sampson teased as she cradled Sam's balls and prodded at her asshole, before sliding a finger in and stimulating Sam's prostate. Her face was right near Sam's treasures and Sam could feel the teacher's hot breath on them, and she could swear for a second, she felt Mrs. Sampson lay a kiss on her balls. The students looked closely at this display, seeing Sam's prostate pulse as Mrs. Sampson prodded at it. Sam could hardly keep herself in control, feeling her cock, balls, ass and pussy be handled by this naked and pregnant woman. "If she isn't careful, I'm going to fuck her." Sam thought, having a good feeling the teacher would not mind at all. As she prodded at Sam, the teacher continued her lesson. "Strangest of all, it is not known what happens to a woman's penis when she is not "packing", because if you scanned her body when she's not "packing", there would be no sign of her penis anywhere at all." She said as she pulled her finger from Sam's ass, but did not remove her hand from Sam's balls and the hand that had been fingering Sam's butt was now holding it.

"While I have Samantha here, I can demonstrate another unique aspect of human women. Most species of mammal have some from of vaginal lubrication to help with penetration by the male, but for some reason human women have this same lubrication for their anus as well. If Samantha's anus is stimulated, it would lubricate the same as her vagina." Mrs. Sampson said before her tongue began to tease at Sam's asshole. She looked directly at the class as she blatantly rimmed Sam. Sam moaned as she felt the teacher's tongue lick over her knot, and she whined a little when the teacher stopped. "As you can see, Samantha's anus is now lubricated with the same fluid that lubes her vagina." She said before she resumed rimming Sam. Sam shuddered and smiled as Mrs. Sampson rimmed her until she came, making an almost lewd display of pleasuring Sam, seemingly under the guise of education. Once Sam came, Mrs. Sampson held Sam in place so the other students could get a good look at her.

Sam shuddered again when she felt Mrs. Sampsons tongue work lower and started licking Sam's pussy. Sam was actually a little stunned at the teacher's actions now. She didn't say anything to the class as she ate Sam out. If Sam had any doubts that the teacher's actions today were unintentional, they vanished here. Her current actions made it clear that Mrs. Sampson was doing this for her own pleasure. Sam then felt Mrs. Sampson pull away, but in a few seconds the naked teacher was kneeling behind Sam, blocking Sam's goodies from the class's view. Sam looked to her teacher, who smiled naughtily before resuming feasting on Sam's treasure. She worked Sam's pussy sweetly with her tongue, occasionally taking a break from Sam's pussy to lick and suck on Sam's balls. It turned Sam on to be so lewdly pleasured before her class, and soon she came, coating Mrs. Sampson's face in her pussy juices. Mrs. Sampson only smiled and licked her lips clear of Sam's treat before standing up again and to Sam's side once more. Still, she kept Sam displayed to the class. After a few minutes, letting everyone get a good look at Sam's goodies, she stood Sam up and gave her a quick kiss on the lips before turning back to the class.

"Going back to women and their ability to "pack", in another mystery, every woman's ability to "pack" varies. Some women can "pop out" very easily, while others it takes some effort and others cannot at all. Some women can stay "packing" for as long as they want, while others can only keep it for a short time or just until they come. Despite years of research, we've never been able to determine why this is. We only discovered HOW women can "pack" just a few years ago. " The teacher said. "Now, I would like all of you ladies to try yourself to "pop out." Every one of you who can "pack" should be able to, as most women find out if they can around their eighteenth birthday. Most often, if a woman has not been able to "pack" by the time she's twenty-one or so, it usually means she cannot." Mrs. Sampson requested. Sam watched and listened as each girl took deep breaths and focused. Two girls, Mindy and Melody, "popped out" almost instantly. Mindy's cock was seven inches, matching well with her huge tits, but Melody's was only four inches. Two other girls, Selia and Lana, took a few minutes before they "popped." Both girls' cocks were six inches long, though Lana's was thicker. Fiona "popped" just as she was about to give up, now sporting a five-inch member, but eight girls, try as they might, along with Mrs. Sampson, just could not do it. Some girls looked over to Kelsey, who seemed to be able to "pop out" and "reel in" repeatedly with little effort.

The class all turned when they heard a loud, orgasmic sound from Lucy, another girl in the class. Her best friend, Juliana, was fingering her and she had suddenly "popped out." As she came down, she looked at her newly sprouted cock. It was not big, just four inches, but it was hers. "I've never "packed" before." She said with a blush. Mrs. Sampson walked to her and held Lucy to her breasts, kissing her head and stroking her hair. "It's natural, Lucy. Some women can only "pop out" when sexually excited, like you. Mrs. Sampson then walked up the eight remaining girls who had not "popped out." She then proceeded to kiss, finger and even lick each girl's pussy, but only one of the eight, Daisy, ended up "popping out", a cute four-inch penis now sitting over her pussy. Sam smiled as she looked to each "packing" girl, happy to see none of them came close to her in size. Kelsey was the closest and her cock was still two inches smaller than Sam's member.

Satisfied with her work, Mrs. Sampson stood up and licked her lips, tasting the remnants of the girls on her lips. "As you can see, not every girl here was able to "pop out" as they call it. Some of you were easily able to do so, some of you took some time, and some of you, like me, just could not do so. No one is sure yet how this is possible, or why for some women it's easy and not for others. Sexual orientation has nothing to do with it, despite some claims, as there are lesbians who cannot "pop out" and there are straight women who can." She said before turning to Sam and turning her once more to face away from the class.

"Now, to show you that a "packing" woman performs no differently than the cock of a man, Samantha is going to copulate with me to demonstrate." Sam's jaw dropped as the teacher said this, hardly believing she was about to fuck Mrs. Sampson. "Normally, I'd have the student wear a condom, but as I'm pregnant right now there is no risk, so I will forgo the usual precautions." Mrs. Sampson said as she knelt in front of Sam. "Now before you copulate with me, Samantha, I need to know you're fully erect." She purred before taking Sam's cock into her mouth. It was not a quick suck either. Mrs. Sampson's mouth worked over Sam's cock and soon she let it out and started licking and sucking on Sam's balls. The time she spent worshipping Sam's nuts made it clear to Sam this wasn't just to get Sam hard (Not really needed, since Sam was always hard anyway), but that Mrs. Sampson was blatantly giving Sam a blowjob. Sam was very turned on watching her pregnant and naked teacher suck her off and soon she popped off into the woman's mouth. Mrs. Sampson hummed happily as she swallowed each shot from Sam.

Once Sam was done coming, Mrs. Sampson stood up and turned around so that her ass and pussy were presented to Sam. "While Samantha is copulating with me, I want all of you to pay attention to her male organs. You will see that despite Sam's female birth, she is capable of orgasming as men do. Now Samantha, this is for educational purposes so there will be rules. You are to only copulate with me. No spankings and no anal sex, nothing other than your penis in my vagina. Your hands stay on my hips and go nowhere else." She commanded as she stood in front of Sam and then bent over the table in front of them, resting her hands and presenting her pussy and ass to Sam. She quickly shot a naughty look to Sam, showing Sam that this wasn't all just for the lesson. She wanted Sam to fuck her. "Samantha, before you copulate with me, please make sure I'm well-lubed up like I did for you." She said naughtily. Sam grinned, knowing exactly what her teacher wanted.

Sam eagerly knelt behind the teacher, raring to taste her teacher's pussy. It was clear when Sam looked at Mrs. Sampson's folds that the teacher was already wet, and Sam did not need to get her ready, but Sam was not going to pass up the chance to taste this lovely woman. Sam giggled a little, knowing full well that Mrs. Sampson only asked Sam to do this just to have Sam eat her out. Sam licked her lips as she spread Mrs. Sampson's pussy and then dove in. The teacher yelped as Sam started eating Mrs. Sampson's pussy. Sam could not deny how hot this was. She was about to fuck her teacher, who'd just blown her, in front of her whole class. Sam's tongue worked fast to get Mrs. Sampson wet, but Sam decided to be a tease and stopped just as the teacher was near climax. Though she knew it was not allowed, Sam moved quickly to Mrs. Sampson's butt and spread her cheeks. Mrs. Sampson was about to protest as Sam started rimming her, but Sam worked too fast for the teacher to voice her objections. Shivering from Sam's tongue work, Mrs. Sampson trembled as Sam rimmed her to climax. Satisfied she was now ready for Sam, Sam stood up and rubbed the head of her cock along Mrs. Sampson's slit over and over again. Mrs. Sampson moaned at Sam's teases until she gasped when she felt Sam's prodigious cock enter her pussy. She smiled as Sam drove into her and let out a satisfied sigh when Sam bottomed out within her.

Sam trembled as she observed her teacher's pussy spread around her cock. It reminded her of yesterday when she fucked her pregnant sister. In the old-world Sam had always wished to fuck a pregnant woman, and now she was about to do so for the second time in less than twenty-four hours. Sam was happy to see how wet Mrs. Sampson was, she could not wait to work her cock into the teacher's pussy. With a grin, she put her hands on Mrs. Sampson's hips and guided her cock back and forth inside the mature pussy before her. Her memories soon flashed to when they had started their unit on human biology. When they got to reproduction, Mrs. Sampson had let one of the boys in class do the same to her as she was letting Sam do now. Still, Sam's memories made it clear the teacher had not been anywhere near this amorous with the boy she'd let fuck her.

Sam was pleased with how easily the teacher's pussy took her staff. Mrs. Sampson tried to maintain a professional demeanor, but Sam still heard the low moans as she slid into the pregnant woman and the light gasp and moan when she bottomed out in her teacher. "As you can all see, Samantha's penis, oh fuck, who am I kidding, you're all about to watch me get fucked, Samantha's cock is buried in my pussy. After Sam fucks me, we will gather some samples of her cum to show there is no difference between hers and a man's cum. Feel free as she fucks me to come up and take a closer look, but I expect all of you to take notes comparing when a woman is fucked by a man's cock versus a "packing" woman." Mrs. Sampson told the class before turning to Sam. "Now, Samantha, please fuck me so we can begin the last part of the lesson. Don't hold back and don't worry about making me come. This lesson is about you and women like you."

Sam nodded happily before she began thrusting. Mrs. Sampson was quite wet, so Sam did not have to start slow. She began to wonder how much of this was really about teaching the students and what was just for the teacher's own pleasure. She honestly wondered if other biology teachers got as hands-on as Mrs. Sampson did now. Sam didn't really care though one way or the other, she just smiled as she continued to enjoy the feel of Mrs. Sampson's pussy on her cock. It was quite tight and felt so warm around her staff. It was even better knowing she didn't have to worry about if the teacher came, just herself. It was just like it had been with her and Mr. Tristan last period, just with her on the other side. Looking around the classroom as she fucked the teacher, she smiled seeing all the other students looking at her, watching her fuck the teacher. Their eyes were fixed on her ass, pussy and cock as she rutted. She could also see that some other students were getting in on the action. Kelsey was one of the few other girls still "packing" (in fact, Sam didn't think she'd seen Kelsey "reel it in" at all except to demonstrate her own control over her ability) and she was once again stroking her cock while she took her notes. Three other girls were playing with their pussies and two of the girls she had been demonstrating with earlier were now rubbing each other's pussies. A few of the guys in class were also stroking their cocks as they watched Sam fuck their pregnant teacher, but one lucky boy was now fucking Robin from behind, mimicking what Sam was doing to the teacher.

Sam's hands refused to stay still as she fucked, despite the teacher's commands. Soon, she let go of Mrs. Sampson's hips and was gripping the woman's big ass with her hands. Mrs. Sampson tried to protest, but Sam was fucking her too good for her to speak right. Sam smiled at this and delivered slap after slap onto the teacher's ass, despite being told not to. Mrs. Sampson squealed and jumped with each slap. After a few slaps, Sam looked to the teacher's reddened ass and smiled at the woman's now very wet asshole. She quickly shoved a few fingers inside, working Mrs. Sampson up from both ends. Knowing she had no limits, Sam started to think of using this chance to also fuck her teacher's ass.

Of course, as Sam fucked Mrs. Sampson the action did not stay separate between them and the other students. First, one of the guys who was stroking himself walked up to them and quickly put his cock in Sam's pussy. His strokes matched with Sam's and after a few thrusts she felt the guy come in her pussy. This was followed by one of the "packing" girls who was stroking herself walked up to Sam and quickly putting her cock into Sam's pussy as well. Her strokes matched with Sam's and after a few thrusts Sam felt the girl come in her pussy too. This was followed by another newly "packing" girl, who did the same as the previous girl and filled up Sam's pussy even more. Just as Sam came down from three fellow students coming in her, Sam felt the huge cock of Kelsey enter her pussy. Kelsey's hands went around Sam and groped her tits as Kelsey sunk into Sam. "You'd do the same to me if I was in your place." Kelsey whispered into Sam's ear as she fucked Sam. She toyed with Sam's tits and kissed Sam's neck while pumping into Sam, showing she was much more experienced than the other three who'd fucked her. Sam was loving the whole thing; it felt amazing for Sam to use her cock and pussy at the same time. It was only her divine abilities that allowed Sam to work her pussy as good as her staff that she was able to make Kelsey come before Sam finished with Mrs. Sampson. It was harder with Kelsey than the other three, as Kelsey had not tried to match Sam's pace and so Sam had to work two women at different paces. Just as Sam came down from her fellow students coming in her, another girl knelt behind Sam and lapped at her pussy, eating the cream pie left by the others. She did not stop licking until she was sure she had cleaned Sam out. Sam was losing her balance now, and just to make things harder; another two girls came up and started tonguing Sam's balls sensuously before they started sucking on her sack. Sam could hardly stand up, feeling both girls sucking on her nuts while she fucked the teacher. The constant stimulation from her classmates pushed Sam over and she came violently inside Mrs. Sampson, shooting at least five or six shots of cum into her teacher.

Sam was not ready to stop fucking Mrs. Sampson. She could see how turned on the teacher was, and it filled her with naughty glee. As she pulled her cock from the teacher's pussy, her fingers pulled from the teacher's ass. Mrs. Sampson was too dazed to notice as Sam slyly slid her cock up the teacher's ass crack and gently inserted herself into Mrs. Sampson's ass. Mrs. Sampson realized this and looked back at Sam with shock. "Sammy, no. I told you only in my pussy." She pleaded weakly. Sam ignored her. She could see that her teacher wanted this and Sam was more than happy to fuck her teacher's butt. The other students looked on, shocked by Sam's brazen act. Sam only smiled at them. "Watch and learn, kids. I'm going to ream this pregnant ass." She growled.

Soon, in further defiance, Sam's hands left Mrs. Sampson's hips, and she lay upon the hot teacher, her hands greedily filling themselves with her teacher's tits while Sam's own rubbed on her teacher's back and Sam's lips started kissing over Mrs. Sampson's neck and shoulders. Sam's loving attention made the teacher blush and moan, her eyes shut and her mind only on the rutting from Sam. Sam was very hot now. There was no pretense of education now. She was brazenly fucking her teacher's ass in front of her classmates and it made her very hot. "I've wanted to fuck you for a long time." Sam growled as felt up her teacher. Mrs. Sampson only smiled before turning her head to give a kiss to Sam. "I've wanted you to fuck me for a while too, Sammy. That's why I picked you and why I spent so much time today molesting you. " She purred. This made Sam grin, knowing she'd been right. She let the teacher's tits out of her hands and soon was standing up again, her hands back on Mrs. Sampson's hips and her cock ramming hard into the pregnant woman's butt. Too soon for Sam, she came and filled Mrs. Sampson with her cum once more. After five shots, she pulled her cock from the gaping hole, letting everyone see how much cume she'd shot into her teacher's ass. As Sam pulled out, the girl who had cleaned her pussy returned and happily took Sam's cock into her mouth, cleaning it of Sam and Mrs. Sampson's combined juices.

Despite Sam's defiance, fucking her ass without permission, Mrs. Sampson stood up and just smiled at Sam before grabbing a microscope slide. She ran her finger through her cum-filled pussy and placed the dollop of cum on the slide. Just as she turned around, Sam's cleaner dove on her and started cleaning out Mrs. Sampson. "Eleanor, did I give you permission to do that?" She said sternly. Eleanor blushed and backed out. "I'm sorry, Miss, but I just love cream pies. I'll stop if you want, but can I please clean out your pussy?" Mrs. Sampson smiled and put her hand to Eleanor's head. "You may, just ask first next time." She cooed as she used her other hand to place the slide on the microscope. "While Eleanor cleans my pussy, each of you go up and observe the sample of Sam's cum." Each student got out of their seats and stood in line and then observed the slide and saw the small swimmers in Sam's cum.

"As you can see," She said as the last student, Eleanor of course, observed the slide and sat back in their seat, "Despite being a woman, Sam's cum is no different than any man's cum would be. This is true for any "packing" woman. We are not sure here either how this occurs, as it has also not been observed in any other animal." Sam grinned again, knowing why. "It's just fucking magic." She thought slyly.

"Now, I want all of you to take what you've observed today and answer the first ten questions at the end of the chapter in your textbook. It is due by the end of class." Just as Sam was about to return to her table to join her classmates in the assignment, Mrs. Sampson called to her. "Samantha, come to my desk." She stated. Sam turned to face the teacher and followed her to her desk, which she had just cleared a large portion of. Sam wondered what else the teacher would need from her, but if it was anything like what had happened already, she was not going to complain. Mrs. Sampson sat down in her chair, sighing with relief as she took her seat and took the weight of her pregnancy off her feet. She then turned to Samantha, still smiling.

"I promised I would make this lesson worth it for you. I saw how much you looked at my breasts and how much you enjoyed sampling my milk. So, to reward you for being such a good sport during the lesson, would you like to drink from my breasts?" Mrs. Sampson asked sweetly. Sam nodded happily. Mrs. Sampson then pulled Sam to her and laid her student across her desk. Sam looked with anticipation at her pregnant teacher's engorged tits and smiled as the teacher brought her hard nipple to Sam's mouth. Sam eagerly put her mouth to the teacher's nipple and sucked hard, rewarded very quickly with a sweet blast of her teacher's milk. Sam moaned happily as she tasted Mrs. Sampson's milk, enjoying her second milky meal of the day. "You can turn in your copy of the assignment tomorrow. This is your reward for volunteering. You can drink for as long as you like, and you can drain me if you wish. " She cooed as she stroked Sam's hair while her student nursed. Sam smiled as she continued to drink from Mrs. Sampson.

Sam's eyes shot open when she felt her teacher grab her cock. It was clear Mrs. Sampson was not done fooling around with Sam. As Sam nursed, Mrs. Sampson jerked Sam off. She was gentle but firm and soon Sam popped off and she watched as Mrs. Sampson aimed Sam's cock right at her tits. Sam's load coated her face and the teacher's tits. This prompted Sam to take a break from her nursing to clean her spunk from the teacher's tits. When Sam was finished, Mrs. Sampson leaned forward and cleaned off Sam's face. Once both women had tongue wiped the other clean, Sam went back to her teacher's tits and started nursing again. Sam drank from the teacher's breasts until the class ended, draining both of Mrs. Sampson's big tits. Sam smiled as she finished her snack, now full and not needing lunch next period. As the class filed out, Sam stayed behind until the room was empty. She didn't have a class for the next hour, so she decided to stay back to thank her teacher. Mrs. Sampson waited until it was just her and Sam before she addressed her student, who was still seated on the teacher's desk. "Is there something else you need, Samantha?" She asked sweetly.

"When I saw you naked when I walked into the classroom today, for some reason I just had to have you. I've waited a long while to fuck you, and I'm so happy I got your mouth, pussy and ass." Sam said, not quite believing how nervous she was to tell this to her teacher, not after they had just fucked, and she'd been breastfed by the teacher. Mrs. Sampson smiled hearing this, looking over her still naked student. "I was very happy to let you have me, Samantha, you're one of my best students. If you'd like, I'd be happy to have you over my home some time for more intimacy." The teacher said lovingly. Those words made Sam tremble, but she wasn't patient enough to wait. "I can't wait that long, miss." Sam purred. "I don't have a class after this and neither do you, and before I go, I want to fuck your tits." She said confidently. Mrs. Sampson trembled hearing this. With a wicked grin she scooted up to Sam again and quickly put her tits around Sam's cock. "Is this what you want, Samantha? You want this monster cock between my pregnant tits?" She growled. Sam nodded and began thrusting fast, not waiting for the teacher to start. Mrs. Sampson just purred and lovingly worked her tits over Sam's member. Sam was moaning as she felt the warm flesh work her shaft. Sure, Mrs. Sampson did not have the unbelievable tits that Sam's mom and sister did, but they were still plenty big enough to work Sam's monster cock.

"Come all over me, Samantha." Mrs. Sampson said as she continued to work her tits on Sam's staff. "Coat my face and tits again." Hearing the teacher beg for her cum, Sam could no longer resist using her vision on Mrs. Sampson. What Sam saw shocked her. It was now clear why she'd been so amorous with Sam today. Mrs. Sampson was mostly like Sam in her preferences. She occasionally dabbled with men but mostly preferred women. Unlike Sam though, Mrs. Sampson was a submissive and she had a special affinity for "packing" women. Still, the biggest shock was that it was no accident Mrs. Sampson had picked Sam. The teacher had a crush on Sam and had been waiting all year for this. This all made Sam even happier, knowing both of them wanted this. "Make me cum, teach. Coat your tits and face in my spunk." Sam growled. This made Mrs. Sampson tremble, and she worked harder to get Sam off. Too soon for Sam, she popped off and watched as ten shots of her cum utterly bathed Mrs. Sampson.

Mrs. Sampson moaned as Sam painted her. She moaned more as she rubbed Sam's cream into her skin. Sam quickly got off the desk and joined the teacher, licking her own cum from the sexy preggo. Once the teacher was cleaned up, Sam began kissing the teacher again. For a while, the two women remained in a lip lock, until Sam heard the bell signalling the next classes had started, not that she had anything to be late for. Reluctantly, Sam broke the kiss and looked forlornly at her teacher. "I guess I better go. I hate to leave though, but if you were serious, I'd love to see you this weekend." Sam purred. Mrs. Sampson just smiled. "I was very serious, Samantha. I've been waiting to have you fuck me all year. I'd love for you to come over and spend the night railing me." Sam smiled hearing this but then thought of the teacher's husband. Sam was many things, but a homewrecker wasn't one of them. She had to be sure her husband would be okay with Sam visiting. "Just one question, miss? What about Mr. Sampson?"

Mrs. Sampson smiled a sad smile as she heard this. She sighed briefly. "Samantha, there is no Mr. Sampson. He passed on two years ago." Mrs. Sampson responded. "I tell everyone it's his baby I'm carry, that I froze his sperm before he died, but I trust you enough to let you know that's not true. He and I were beards for each other. I much prefer women, and he preferred men, but our families insisted on us marrying. We both did care for each other though, and we did sometimes have sex. I did love him, but not like a woman should love her husband. He was more like my best friend than my husband." She then looked to Sam with wet eyes, and Sam just nodded. She would not tell a soul. It saddened her to hear that even in her more progressive world, things like this still happened.

Feeling love and affection for her teacher, Sam then stood up and pulled her teacher to her, hugging her as tightly as she could with the teacher's pregnant belly, before she put her lips to Mrs. Sampson. To Sam's delight, the teacher eagerly responded back. She hugged Sam back before opening her mouth and accepting Sam's tongue as Sam deepened their kiss. For the next few minutes, Sam held her teacher tightly as they kissed. Soon though, Mrs. Sampson broke the kiss and pushed Sam a little from her. "Now Samantha, while I'm enjoying kissing you, and you don't have a class after this one, you still need to get going. So run along. Unfortunately, I'm busy tonight so I can't meet up with you after school today, but maybe tomorrow or this weekend you can come by, and we'll have some more fun. I love women like you."

Sam nodded, gave Mrs. Sampson one final kiss and grabbed her things before heading out of the classroom. She was delighted at the possibility of spending the night with Mrs. Sampson, and she was very happy to know that in this new world of hers, the sexy teacher was hot for her. This knowledge made Sam consider asking the teacher to also be her girlfriend, just like Sam's mother. As she left the classroom, for a second she could swear she felt the teacher's eyes on her naked ass. She ran to her locker to switch out her things for the second half of her school day.