Fine, let´s go now.

Against your better judgment, you decide to agree to go to Sid´s place right now. Alyssa is super excited and happy about it.

Alyssa: "Yay! Thanks, baby, you won´t regret it!"

You: "I´m just worried you´re...maybe getting too wrapped up in the lessons. You still like me right?"

Alyssa: "Oh, of course honey! I´m so happy with you, and you make me so happy. I just, haven´t done anything really sexual with anyone except Sid, and I feel so lucky to have him teach me, because he really knows everything about sex!"

She gives you a deep kiss and then you leave your apartment. The whole way over you regret agreeing to this, Alyssa is going to grind her pussy on Sid´s bare cock, until they both cum. It´s unbelievable that you agreed to this, but you just don´t want to lose Alyssa, since she seems so excited about learning that stuff. You and Alyssa talk about other stuff on the way, which kind of makes you forget what you´re walking into. In the meantime you think about what Alyssa said. Maybe the only reason she´s so into the lessons with Sid is because he´s the first one she´s done anything with. Maybe if you had insisted on doing more stuff with her earlier, she would have never felt the need to learn what Sid has to teach. Maybe this is all your fault....

You try and dismiss your thoughts as you enter the apartment. Sid and the roommates, who have now gotten to know each other better over the past few weeks, are chatting in the living room common area. Sid is the center of attention, dressed in nothing but some shorts that display is dick pretty well, leaving nothing to the imagination. The roommates are there with their boyfriends/girlfriends, listening to Sid talk about sex.

Sid: "I´m telling you, it´s the best feeling in the world, and it has so many more benefits than drawbacks. Creampie your girl any chance you get, either the real pussy or the mouth pussy. The real pussy is the best, of course."

Roommate #1: "But what about pregnancy? We´re not ready to have kids."

Sid: "I can teach you the rhythm method, it´s always worked for me 100%. Never gotten a single girl pregnant yet. No birth control needed, besides, the hormones ruin the sex for me, it´s just not the same, trust me."

Roommate #1´s girlfriend: "What´s the rhythm method? She says, clearly interested."

Sid: "It´s where you..." Alyssa strides into the living room and takes a seat. You hang back, embarrassed as to why you are here.

Sid: "Alyssa, and Matt! What a surprise, you were supposed to stay at your place tonight, right?"

Alyssa: "We just thought we could speed up the lessons you´ve been giving me a little. I know we talked about starting next week but I can´t wait, is that alright with you?"

Everyone looks in your direction, you look away, cheeks red with embarrassment, and stomach twisted into a knot.

Sid: "Of couuurse! That´s wonderful, what a stride forward for you guys." Sid´s cock twitches a little. "Go wait for us in the room, Matt, we´re just going to finish our conversation."

You silently go to the room, and sit on the bed that Sid and Alyssa have been using to make each other cum for weeks now. You haven´t been here since the night where you saved Sid, and Alyssa ended up swallowing that strange, homeless cum. You were content with the pictures and videos of the lessons, not bearing to see how affectionate they had probably become towards each other. The room smells different now, as well. It used to smell like Alyssa, now it smells like....sex, and cum, which is not really surprising. You lie down on the bed, and listen in on the conversation in the living room, which you can hear clearly since the walls are so thin.

Sid: "Come sit on my lap, Alyssa. Anyway, so the rhythm method is where you time the girls ovulation around your sex sessions. Whenever the girl is ovulating, you resort to either pulling out, risking it, or cumming down her throat. Keep in mind that it´s essential that the sperm enters the woman´s body one way or another. The benefits of sperm absorption are too many to count, Alyssa here has been swallowing my cum for weeks now. Have you noticed any benefit yet, Alyssa?"

Alyssa: "Hmm...Yeah I´m definitely feeling happier, more attentive, and less anxious throughout the day. So I suppose it´s having an effect!" _Could also be because Sid makes you cum every other day, where as Alyssa wasn´t even masturbating before meeting Sid. _You think to yourself.

Sid: "That´s exactly what I´m talking about, it´s nothing to scoff at! I also recommend you guys to suck your girlfriends pussies, and not for just a few minutes, until they cum. The woman´s nectar also has a great effect on boosting the male testosterone."

Some girl: "Yeah but Chris here has never been able to get me to cum with just his mouth."

Sid: "Well maybe I can teach Chris, too. But right now I have my hands full with Alyssa and Matt."

Chris: "No way, man. I can just learn it on my own with Ellie."

Sid: "Suit yourself. We´re gonna go start, but we should hit the showers first, Alyssa."

Alyssa: "Oh, let me just let Matt know."

Sid: "No need, he can wait." You furl your eyebrows at this comment, as if your time or presence doesn´t even matter here. You don´t dare go outside and face the roommates again, it would be too embarrassing. So you let it slide and keep listening for sounds in the shower. The water starts running as you can hear Alyssa giggling.

Alyssa: "Stooop, we should hurry and finish the shower."

Sid: "I just can´t resist your sexy body, your breasts are phenomenal. Best I´ve ever seen, I can´t stop myself from sucking them."

Alyssa: "oogh, that feels good...."

Sid: "You´re so wet, girl, have you been looking forward to this?"

Alyssa: "Yeah....I´ve been thinking about it all day....I want to feel your dick on my pussy...."

Sid: "You´re finally going to, in just a second. Let me shave you again to prepare."

A few minutes pass as no doubt Sid is getting yet another close up view of Alyssa´s naked pussy. After a moment you can hear moans coming from the shower, Sid must be eating her out again. He did say the best time to suck a gorgeous girls pussy was right after shaving it. Alyssa´s moans escalate as she´s getting close to cumming from Sid´s masterful tongue, and then they suddenly die down without a crescendo.

Alyssa: "Noooo, let me cum, Sid, pleeeease...."

Sid: "Not yet, baby, I want you to cum on my cock..."

Alyssa: "uughnn....okay, hurry."

The shower turns off and they start drying off, within moments you can hear Alyssa and Sid hurry to the bedroom. Alyssa already dried her hair and has a towel around her. Sid has no such towel, just letting his erect cock flop about in view of everyone, including the roommates, probably to catch the attention of the guys girlfriends. Alyssa removes her towel, exposing her engorged labia and pert nipples, clearly horny beyond all doubt, breathing a bit heavy.

Alyssa: "Hey, baby, we jumped in the shower, hope you don´t mind..." You do nothing but nod in her direction, admiring her, somehow extra sexy body. You´ve never seen her so turned on before.

Sid enters the room behind Alyssa, smacking her on the butt before jumping into the bed with you.

Sid: "Hey Matt! So glad you decided to allow Alyssa and Me to get to the next level early. It´s really going to do wonders for your relationship, trust me."

You: "Uh, yeah, I hope so too. It´s just grinding, right? So it´s not cheating...?"

Sid: "Yeah, yeah, just grinding, sure. Unless you want anything more....?"

You: "No! No....just curious, grinding is fine, I guess."

Sid: "That´s a damn shame, alright." Sid shuffles in the bed close to you, and Alyssa enters the bed, straddling Sid´s pelvis so his cock is just barely touching the top of her pubic bone. Sid places his hands on Alyssa´s hips, adjusting her position and pulling her closer.

Sid: "Hey man, Alyssa and I have kind of gotten used to getting the bed to ourselves, do you mind going to get an extra chair? You can put it in front of the bed, besides it´s a better view for you to learn the techniques. I´ll be going over a lot of positions, even though we´re just grinding."

You: "Uhm, sure." You look at Alyssa, but it´s like she doesn´t even see you, she´s looking down on Sid´s cock and her pussy folds about to finally meet for the first time.

As you exit the room, you can hear Alyssa start moaning already, as Sid has pulled her down so that his cock shaft is firmly wedged in the folds of her pussy. Now Sid has stolen another first from you, it should have been your cock to touch Alyssa´s pussy for the first time...

Sid: "You´re so wet for me, we don´t even need any lube. Start grinding on me slowly, find the right position."

Alyssa started moving in a back and forth motion as you finally close the door, afraid of missing out for some reason. You enter the living room and the roommates are still there, Alyssa´s moaning can be heard as well as a faint knocking sound. Probably the headboard knocking on the wall. The roommates and their girlfriends grill you about your situation, and delay you in getting a chair. When they finally let you go, you grab the chair and hurry to the room, where Alyssa´s moaning has picked up again.

When you enter the room, you can see Alyssa is still on top of Sid, grinding her naked pussy on his erect cock, now slick with her juices. Her hands are on his chest as she leans forward a little bit, her large, perfect breasts swaying in rhythm with her grinding motions. The position of her hands causes her breasts to squeeze together as well, giving Sid the perfect view of her body in her most sexual state. Alyssa is grinding feverishly on Sid´s cock, a sheen of sweat forming on her. The room already smells of sex, the aroma permeating the room.

Your stomach twists and turns, as you place down the chair and sit down, instinctively pulling your pants down to your butt just enough for you to pull your dick out. Sid was right, this view was pretty good, you can see the folds of Alyssa´s pussy hug Sid´s massive, thick, shaft. Clearly working overtime to coax the cum out of Sid´s balls, Alyssa is making sure to stroke the entire length of Sid´s cock with her pussy folds. It is the most erotic scene you have ever seen, porn does this no justice. Maybe a part of this is because it´s your girlfriend, but at least they´re not actually fucking. You are jerking yourself off slowly to try and time your orgasm with Alyssa´s.

As Sid and Alyssa keep grinding, her moans get louder, and her sweat is beading now, and her heaving bosom is surely pushing Sid over the limit. What feels like just moments before Alyssa orgasms, Sid pulls her up, her pussy folds clearly missing the cock they were just on, you can almost see her pussy trying to grab at it again.

Alyssa: "Noooo, I was just about to come, Sid!"

Sid: "Sorry, baby, time for another position." He says as he flops Alyssa down on her back. "So now we have done the cowgirl, it´s time to check out the missionary position. Alyssa is lying next to Sid now, her pussy more open and engorged than you have ever seen before. She is biting her lower lip in anticipation of feeling Sid´s cock on her pussy again.

Sid: "Watch as I line our genitals up for this, Matt." Sid says as he adjusts Alyssa´s legs so he can fit his body in between her knees. "So, knees up, feet either in the air or on the bed." You nod as Sid looks in your direction, then at Alyssa. "Now, if we were not grinding, I would place the tip of my cock here." He says as he has now placed himself in between your girlfriends legs, his cock lined up perfectly with her bare, unprotected pussy, that looks like is just waiting for his cock. "This position ensures direct access to the pussy, letting gravity do most of the work. For example, if I were to let myself go and relax from here, my cock would enter Alyssa pretty easily." Alyssa moans at this thought, her cheeks red and her face flooded with lust. She´s clearly not thinking straight, desperate to cum, having been denied her orgasm twice now.

Sid pauses with his cock just at Alyssa´s entrance, looks at her and speaks to you without looking back.

Sid: "Matt, I think it´s time for you to reconsider this 'no fucking' rule, Alyssa clearly wants my cock deep in her pussy, you can tell, right?" Sid says, his cock still lined up perfectly to Alyssa´s pussy. The head of his cock just barely being hugged by Alyssa´s pussy folds, threatening to take your girlfriends virginity right now, right in front of you. His big balls ready and primed to release so much cum into your girlfriends unprotected pussy. Alyssa remains silent, just breathing heavily and waiting for your answer.

You: "Yeah, I can tell. But we said no cheating, that would clearly be cheating!" You say, with your hand still around the head of your cock, but frozen in place in anticipation.

Sid: "Not necessarily, Alyssa and I have been engaging in...very sexual activity in the past few weeks, and we didn´t consider that cheating because I´ve been teaching her. This is really no different, Matt. Just another lesson." Sid says as his cock sinks just a little bit further into Alyssa´s pussy, it´s getting harder for him to hold himself up.

You: "Yeah, but that..."

Sid: "Think about it, Matt. So far this has been nothing but beneficial to your and Alyssa´s relationship. She clearly loves you, right, Alyssa?" Alyssa nods, looking briefly in your direction before locking eyes with Sid and his cock. "And you love her? You think she is beautiful and sexy?"

You: "Of course I do! She´s the best thing that ever happened to me..." This is the first time you and Alyssa have confessed your love to each other, and it´s happening because Sid´s cock is threatening to plummet deep into your girlfriends pussy.

Sid: "Then us fucking should not be an issue anymore. Alyssa and I can fuck all we need to, now, and she will still always love you, and you will always love her. How can someone like me come in between that? Really, Matt. You should just sit back and enjoy the show."

Sid´s cock is sinking just a little bit more into Alyssa´s pussy, Sid´s precum is definitely leaking inside of her now.

You: "I don't...I..."

Sid: "Let me fuck your girlfriend, Matt, let me make her cum, she clearly needs it. Let me cum using her pussy. Let me affirm your love to each other. What do you say?"

A few moments pass, Sid´s cock firmly wedged in your girlfriends pussy entrance, pulsing with both their heartbeats.