You help Emily with her oral skills.

"If that's the case," you step around the podium and approach Emily's desk, keeping up the professor roleplay facade for now, "I think I can help you with that."

Emily giggles. "For real though. Most of the time I'm with girls, they're the ones going down on me. Not that I'm complaining. It's just that I have a special date planned for one of my, umm, friends, and I may have made some promises about some mind-blowing orgasms that I would like to keep." She pauses for a second, waiting for your reaction, then continues. "So, do you mind helping out your roommate and mentor with a favor? I always pay back my favors, sometimes with interest..."

You think for a moment. Even if Emily is terrible, you're sensitive enough that you'll have a good time no matter what. Hell, you even got a bit worked up from the walk to your classroom just from your panties rubbing against you. You know there's no saying no to the cute girl offering to go down on you, so you simply climb on top of the desk she's sitting behind, letting your legs dangle down. You're glad you wore a skirt today; it makes things easier. You let it ride up a bit as you think you see Emily lick her lips before diving between your legs.

You feel your roommate use one hand to push your panties aside, exposing your lips to the cool air of the air-conditioned classroom. Meanwhile, her other hand is parting your lips, letting her see what she is working with. With the first contact of her tongue along your slit, you're **** to grab onto the edge of the desk for support. For a novice, Emily has no problem exposing your clit and starts giving it some serious attention.

It doesn't take more than 30 seconds of the direct **** on your clit before you feel your orgasm start creeping up. Was she really that worried about disappointing? Or are you just that easy to satisfy? Nevertheless, you unconsciously buck your hips up towards Emily as you wrap your legs around her, keeping you from falling off the desk as you lean back into your first climax. You grab on to Emily's hair as well, more so to steady yourself than to try to control her, but it works both ways.

Your roommate continues working on you until you moan out your fourth orgasm in the past 10 minutes. Finally, she pulls back and you relinquish your grip on her with your legs. When her face reappears from under your skirt, she's sporting a beaming smile.

"I'm not sure if that really helped me practice at all, but feeling you squirm against my tongue was at least a huge confidence boost!" Emily sticks her tongue out and licks up what looks like a glob of cum from her chin. You were sure the last bit of Jake's cum oozed out this morning, but you were apparently wrong. "So," Emily begins, "oral as a girl, better or worse than as a guy?"

You're not sure how to answer. "I... umm... I don't know?"

"Aww." Emily coos. "You really were a virgin before, weren't you? Well I'll answer for you: it's way better. Even the most virile guy couldn't cum four times in one day, let alone in ten minutes. My best is five times in an hour but that even required my most powerful vibrator. As a guy, I managed three times in one day before, but that's a story for another day."

You still have a few more buildings to explore around campus to find your classrooms and Emily leads the way, holding your hand most of the time she's showing you around. You don't have as much fun in the rest of your classrooms, but your roommate pulls you in for a quick makeout session in your math room, telling you that it's the most fun you'll ever have in that particular building.

When you eventually get back to your dorm, you're just about ready to turn in for the day, given that you start classes tomorrow morning.