Offer to return the favor

At your tone, Alice giggles. She watches you fall limp in the afterglow of your orgasm and instead turns to her roommate. Charlotte, having finished cleaning your cock, has leaned back; your cock exiting her mouth with a loud pop.

Momentarily forgetting the man in the room, Alice beams to the redhead. "I love watching you suck dick girl. You look so hot with a man in your mouth."

At her words of praise, Charlotte blushes and looks away. "I mean, it's just such an honor. Getting them hard is noteworthy enough, but having the chance to bring them to orgasm? It's a girl's dream."

At her side, Alice is nodding at every word. "I hear you sister. But, come over here for a second." and she motions Charlotte to move her head closer. She continues once the girl obliges. "You've got a little something. Right... Here."

You watch as your former girlfriend gives her roommate a small kiss, ridding the other girl of the leftover saliva and cum on her lips. Their moment brief, the floodgates soon open and both girls start making out at your feet, tongues dancing as their bodies slowly press into one another.

Miraculously, despite being fully spent, you're still hard. Or maybe it wasn't a miracle, given the scene before you.

During their kiss, Alice has pushed her roommate onto her back, the petite girl climbing onto the much taller one. Their bodies moving with a familiarity you've never seen before, Charlotte spread her legs and lifted her knees, allowing Alice to sit up on one of the girl's naked leg.

From your perspective, you have a clear view of Charlotte's naked pussy. It's completely soaked.

As their passion grows, Alice now stimulating herself by grinding on her roommate's leg, you keep your gaze locked on the exposed snatch before you. There's no denying it - Charlotte is hot as fuck. You've always fantasies about taking the girl in Alice's place and having those long, luscious legs wrapped around your body, pulling you closer and deeper. Honestly, fucking a girl taller than you would be super hot. From here, it would be easy to slide between her legs and enter her wet pussy, filling her until you had your fill.

However, you think back to the show she gave you before - the free masturbatory session she had for your viewing pleasure. You distinctively remember how she failed to orgasm, and started feeling guilty. She'd just given you an amazing blowjob, probably your best ever, and you've given her nothing in return.

"Um... Hey, girls?" You ask, tentatively.

The roommates, hearing you, slowly bring their passion to a stop, giving one another a few lasting pecks among their giggles before turning to you.

"Yes John?" your former girlfriend asks in a singsong voice, her arousal thick in her words.

You nervously swallow, suddenly unsure about how to ask this. "Well, Charlotte's blowjob was mind blowing. Seriously, one of the best I've ever had - no offense Alice."

Considering your still freshly brief monogamous history with the girl, you were a little scared she'd flip out at the admission but she merely smiled during your brief pause. Beneath her, Charlotte blushed once more, avoiding your gaze.

"And," you continued, "Well, it seems unfair that I got to get off and she hasn't. I'd like to return the favor."

Your words shock Charlotte enough to look back at you, her eyes on yours. Clearly, she wasn't expecting this. "What? How would you do that?"

This time it's your turn to blush, rarely having been this forward with a girl. "By... Huh, by eating you out."

"Eat... me out?" the girl pauses, assessing the implications of your words. "Having you eat me out. John's face, between my legs.... liking my...."

There's a moment of silence, during which you can only assume the girl spent imagining what you just proposed in her head, before she suddenly jumps up in a scream.

"KYAAH~!" And you watch as the naked girl, face and chest flushed red with embarrassment, bolts across the dorm and locks herself in the washroom.

Dumbfounded, you shift your gaze from the closed door back to Alice, unsure what to say. "Um... Did I say something wrong?"

At that, Alice starts giggling and shacking her head. "No John, you silly goof. I'm sure she appreciates the offer; it's quite rare for men to offer that."

"But..." you add, knowing there's more coming.

Alice sighs, the action suggesting that you should already know what she'd about to say. "Come on John, I thought you'd have known this. Oral sex, for girls... It's an act of **** submission. We're dedicating yourself to your pleasure without asking for anything in return. For a guy to do the reverse to us..."

She pauses.

"It's wrong. Or, at least, we don't expect you do. Sex is all about the man's enjoyment. If us girls want to get off, well, we can just do it among ourselves." That last bit, she said with a largest smile you've ever seen. From her tone and expression, you could tell that she was truly happy with the way this world was arranged.

"Now," she said, bringing you back to reality, "Unfortunately, when Charlotte gets like this, she's typically indisposed for quite some time, so she'll probably stay in that washroom for a while. So, in the mean time..."

And she grinned, glancing down at your still hard erection.

"Do you want help with that?"