It's dinner, and quality time, and... panties?

Glynda was setting out food when you walk into the kitchen. A pan of lasagna, salad, glasses of water and milk... say what you like about your stepmother -- she set a decent table.

"Hey," she said, smiling. "Everything okay with that student?"

"Oh, yeah," you said. "She was confused about how the African **** trade was restricted to the Southern United States but would pass through the Boston seaport even though Boston had abolished slavery, and how that related to England which stopped the trade of slaves years before but still--"

"I'm absolutely willing to take your word for it," Glynda said, smiling. "Miss Cardigan seems to be very devoted to her students."

In your case? That was very true. You were glad that even if you didn't pay a huge amount of attention in class you'd always read the assignments and tested well. That let you pull out the actual lessons you'd been learning as 'evidence' that you'd been getting 'tutored' by Bella.

"God, I had Cardigan for History," Shelly said, walking in behind you. "She was always a total ice queen. Just plain mean. I wouldn't spend extra time with her on a bet."

"She's not so bad," you said, turning to your sister--

And freezing in place. Shelly was wearing a tight blue t-shirt, short enough to bare her belly button... and matching blue high cut panties. And nothing else. She walked by, swiveling her hips slightly as she walked to her place.

"Shelly?! What... what are you--" you started to say. Was she trying to get caught?

"Ugh," Glynda said. "Your sister is absolutely throwing a tantrum because I suggested that maybe going commando under a white pleated mini-skirt was a bad idea. Ignore her. I certainly am." Glynda sat down in her own seat.

"Oh, I believe you," Shelly said. "I'm committed to good panty coverage from now on." She giggled.

Glynda rolled her eyes. "Let's just eat, all right? We can have any arguments after dinner."

Despite Shelly's lack of pants -- and it surprised you just how used to that you got, how quickly, though it was helped by not being able to see her panty-clad ass during dinner -- it was a nice enough dinner. It felt like a lot of the dinners you, Glynda and Shelly had had -- even when your relationship with Shelly was a typical little brother/older sister rivalry, dinner had been nice. At least, after Glynda had joined the family.

Dinner ended fast enough. You and Shelly helped Glynda clear dishes and put them in the dishwasher. Shelly more than made up for your obstructed view during dinner by wiggling her ass every time she caught you looking in her direction, and more than once you had to adjust and hope Glynda didn't notice your increasingly raging boner.

Which she didn't, at least as far as you can tell. "Well, this was nice," she said. "And now, let me guess. You're both going to disappear into your rooms with your computers and phones." She grinned.

"Y'know, this is nice," Shelly said. "Let's have a TV night, like we used to have. You pick something, Mom!"

Glynda looked surprised. "Really?" She looked at you. "John? Do you want that, too?"

You shrugged. "Sure," you said. "I might have to do some homework while we're watching but it'd be a nice change of pace."

"Well... all right then." Glynda smiled. "Are you going to put on pants like a sane person?" she asked Shelly.

"Nope!" She spun and sauntered out, butt moving in little figure eights, only somewhat covered by blue fabric."

Glynda chuckled. "That girl," she said, not noticing your stare. Damn Shelly was hot... but was she insane?

"Yeah," you said. "Anyway..." you followed Shelly in.

She'd parked herself on the couch on one end. She patted the middle. "Sit," she said, grinning. "You can use a throw blanket to cover that iron you're sporting."

"What are you doing?" you hiss.

"Establishing," she giggled, giving you a slightly evil look. "Until we can get our own place, we want the Good Witch to be used to me being a little sexpot. I'm clearly going through a phase now that I'm in community college." The 'Good Witch.' An old nickname. You'd been worried your father's new wife would be an 'even worse witch than your mom,' and that became worse when you both realized her name was 'Glynda.' After she turned out to be pretty great, she became 'the Good Witch' and your birth mother became 'the Bitch Witch.'

Before you could answer that, Glynda walked in. She rolled her eyes. "Shelly--" she said, looking at Shelly sitting cross-legged and half-naked on the end of the couch.

"Oh, don't be a prude, Mom," Shelly said, grinning. "It's home, it's family, what have we to hide? You should try it. A little air on the legs feels good sometimes."

Glynda arched an eyebrow. "Is that what this is? Getting a little 'air?'"

"It's healthy! And means I don't have nasty neurotic inhibitions! Not that I think you do, but... you know, you never know..." She giggled.

Glynda smirked. "Well, if that's the way you feel..." She turned sideways, unzipping a small zipper on the side of her pants. You blinked, staring, as she slid her pants off her legs, leaving her in a pair of burgundy lace panties -- string bikini you though, though it was hard to tell, as her pale mustard top went low enough on her hips so that it was just a splash of near-maroon over her crotch and the cheeks of her butt.

Your sister gasped, then laughed. "Go for it, Mom! How come I don't have underwear that nice?"

"Well, maybe if you got a part time job like I keep suggesting, you could afford to shop at the places I shop." She picked up the remote and slid onto the other side of the couch, putting you between your sister and your stepmother, both stripped to their underwear at least on their lower half.

"I dunno," Shelly said. "You may be too hot, Glynda. I bet John has the most confused guilty hard-on right now..." You turned bright red, mouth dropping--

"Of course he does, and he shouldn't be ashamed of that," Glynda said. "The penis doesn't know you're his sister or that I'm his stepmother. It just knows that there are bare legs and alluring butts nearby, and it responds. That's why it's important to think with the head on your shoulders and not the one between your legs, John. The second head doesn't have good judgement when pretty girls are around it. And Shelly, at least, is pretty."

"You're pretty too," you said, as casually as possible. Your life had officially become insane. You tried to cover up your roiling hormones by fishing out your phone and looking for messages--

"TB - does that mean u remeber?"

You stared. Does that mean you remember? What--

You'd texted her that you cared about her, not a bunch of stuff... and she hadn't answered. Well, it seemed she had, now... but why would that bring up whatever you'd forgotten about your middle school 'adventures?'

Glynda clicked on the television, and you settled in. Shelly was right about how hard you were, but there was nothing to be done about that... and in one sense this really was a nice change... it had been a long time since you'd all hung out on the couch watching television... but it was a good feeling. Nice to get back to it.

All too soon, the night was over. You'd gotten through your homework while you had all watched network television. Shelly had 'accidentally' brushed your side a few times, but hadn't tried to go any further -- probably because you hadn't used a throw blanket like she'd suggested, so she couldn't quite make a grab for you with Glynda on the other side of the couch. You almost ached you were so horny, but you'd made it through.

"I'm going to shower," Glynda said. You were following her up the stairs -- Shelly had already gone upstairs. Following your stepmother's panty-clad ass really drove home how hot she was. Her legs and hips were well toned, and seemed to bear out the beauty that had been implied. And as weird as it sounded, it made more sense to be attracted to her than your sister anyway... you two weren't really related, and since you'd passed the age of majority there wasn't the same...

You abandoned that train of thought. Your life was complicated enough.

"Okay," you said. "I'm going straight to bed. I'll shower in the morning. G'night, Mom."

"Good night, John." She looked back over her shoulder. "It was nice to spend time with both of you. It... gets lonely, with your father being away all the time."

You felt a twinge of guilt. "Yeah, I bet. We'll have to do it more often."

"I hope so," she said. "Though... I may just have to get used to an empty nest. Good night." She smiled, heading into the bathroom.

You shook your head, heading into your bedroom. You had to figure out what to say to Tiffany. You had no idea how to answer her.

You froze.

Shelly was in your room with the lights off, facing away from you, the light from the window playing over her back, her ass, her legs. She was still in her t-shirt and panties. "Close the door, get undressed, and get into bed, John. We need to talk." Her voice sounded sensual... but also very... cool. Not cold, but with an edge.

"...Shel? Wh--"

"Do it."

Swallowing, you stripped out of your clothing, then started to crawl under the covers--

"Stay on top of the covers," she said, even though she wasn't watching you.

"...okay?" You did so, lying on the bed... your dick rock hard and pointing up to the sky.

"You lost your virginity," she said, softly.

You blinked. "...uh."

"You did. Trust me. I know. I got a good smell when I blew you at the scenic view. I was going to mention it then, but I wanted to work it out. Especially since you and this 'Tiffany Brian' are all over social media."

You blinked again, using those blink skills to distinction. "...how did you... you don't follow Tiffany."

Despite herself, Shelly giggled. "John? She tagged you in those photos. Everyone on your friends list saw them too."

"...oh."

"Seeing all that... I figure you haven't been fucking her. Not yet, anyway. She wouldn't be suggesting you had on one hand while saying you didn't on the other." She turned, looking at you in the half-light of the window, her eyes glinting with the streetlight. "So it's Cardigan. You've been deflowered by Isabelle Cardigan."

You felt your heart clench. "...why... would you even think that?" You sputtered, perhaps not making a good case against.

"Because, dear brother... you spent the last two nights literally staying over at her place getting tutored so that you wouldn't fall behind in her class."

"So?"

"So... I was left here. With nothing to do..." She slipped some papers off your desk, from underneath a book. "...but snoop." She tossed them the short distance onto the bed, where they ruffled in a mess.

You looked at them. History papers... on the African **** trade. Quizzes and a test.

All between a 94 and a hundred.

"...I... I...."

"You're acing history. You don't need tutoring. Well, not in history." Shelly peeled her shirt off fluidly, her breasts bouncing free. "So you spent two straight nights at Cardigan's... fucking your history teacher. Having your every need attended to by that silken dominatrix." You weren't sure it would be a good idea to tell Shelly Bella was more a submissive. "Before that, I was serving your needs with my mouth several times a night. And now you've spent the last few hours between two hot women in panties, building up pressure." She bent at the waist, peeling her panties off, leaving her as naked as you were. "And you? Got your fucking cherry popped by Hot For Teacher."

"...Shel... Shelly, you... we can't be... what we're doing is..."

"Oh, I'm not upset," Shelly said, slowly walking over to the bed. "No no. I'm proud. I start sucking your dick, and you go from anonymous nerd to the one who defrosted Cardigan and got the head cheerleader desperately trying to get you to bang her. I rule." She slid onto the bed, and began climbing up along your body, her breasts and then stomach brushing against your rock hard cock. "But it could have been me. I could have been your first, and now I can't be." She slowly smiled. "Except, of course, I can be a first."

"...what... what do you mean?"

"Oh, let's let that unfold... naturally..." she said, her body now over yours. Her eyes were looking down into your eyes. And... you felt a bit of pressure on the head of your dick. Pressure... warmth...

Moisture.

Your eyes grew wide. "Shel," you hissed. "We -- we can't. We're--"

"Shut up, John." Shelly kept her eyes on yours. "Just shut up."

She dropped her hips, engulfing your cock with her hot cunt.

You made a strangled noise -- she covered your mouth with her hand. "Not too loud. The Good Witch is in the shower, but we still don't want her to hear." She began to move... her inner muscles massaging your erection, coaxing and pulling at the skin of your cock.

"...Shel..."

"I was perfectly happy sucking your dick," she murmured. "I still am. But you went and dipped your wick in someone else's candle... and I need to make it clear that nothing's changed between us. So you're getting a whole new first, Johnny..."

"Wh-what?"

"John... do you know what I use for birth control?" Her hips were moving faster now... coaxing and pulling.

"Wh-what?"

"Condoms. It's just smart." She giggled, smiling down at me with a slightly evil expression. "Did I put a condom on your cock before I impaled myself on it, John?"

Your eyes went wide. "...oh my God..." you whisper. "Shelly, we have to stop..."

"We're not stopping!" she hissed, moving faster now. Humping. Grinding. God it felt so good! "You put sperm in Cardigan? Fine. But you're gonna fill me, Bro, and there's nothing stopping it. Maybe I'll catch and maybe I won't." She moaned, and giggled. "Go on... go... go on... ohh... I feel it. Do you feel it? Hours of sperm filling your balls, sitting there with my hot body and Glynda innocently making it worse... all boiling now... your balls tightening... priming... do it..."

You moaned, and she dropped her body onto yours, grinding her hips and keeping the friction on your cock, still buried within her, just as intense as possible. "Artilleryman's got his orders, John," she whispered into your ear. "Taking aim. Looking to blow apart the target. Ammo's a double-charge... mmrrrrooooough... go on... go on, John."

"Shel--"

"Go on! Go on and cut loose... I feel it happening... feel you getting so close. Do it... do it..."

"Shel you gotta get off--" You move to push her up--

Shelly slid her arms along yours, pushing them to the outside of her body and wrapping hers around your torso, pressing you together and letting her grind harder on your cock. "Do it!" she hissed. "Fill me! Fill your sister!"

Her lips cover yours as you almost cry out, and your body, overwhelmed, explodes into a climax that feels like it's coming from your whole lower half of your body -- like you were cumming buckets and all into her tight cunt, right up against her cervix... shivering, you feel like you could shatter from the sheer passion... the sheer need... the pleasure and the forbidden spice of cumming in your unprotected sister....

Her walls clamp on you hard, her own climax hitting her right as she spasms, the movements of her inner muscles helping milk you... pulling your sperm in deeper as she came and came and came....

And then you were lying there, underneath her... breathing hard... stunned at what just happened.

"Cardigan got your cherry," Shelly whispered in your ear. "But I got your first sperm in an unprotected cunt, Johnny." She giggled. "And sure, I'll mostly suck you off... but every so often... I'm gonna do this again... and you're gonna help."

"Shel..."

She kisses you then, and then slides off you. She scoops up her panties, pulling them up her legs, then slides the shirt over her breasts without pulling it on. "Good night, John," she murmurs, and leaves.

Exhausted, sweaty, mind-blown, a little scandalized and terrified, and seriously caught by afterglow, you feel the incriminating test papers plastered against your skin as your eyes fall closed and you drop into a very well deserved sleep.