Don't presume

"Okay, for this one, you're going to guess it." Mel leans forward, her hips rolling into your fingers as they tease ever more intently at her pussy. Your finger is working subtle little circles against her clit now, and judging by that smile, it's doing the trick.

"Can I get a hint?" You lick your lips as she presses her and casually against the sides of her breasts.

"So, what is the established expectation for your hand on my pussy right now?" She smiles sweetly and you choke down a swallow, slowing your pace between her thighs.

"You seem to, uh, like..." You start and her eyes narrow. Oh shit.

"Oh, don't be obtuse. The expectation for what you get to do to my body is set with words, not wetness." She glowers and your hand freezes. "So, what's the lesson?"

...

"Follow expectations?" You swallow, carefully retracting your hand. She breaks into a smug smile. Looks like you've guessed it...

"Right." She snaps her knees together and plops off the counter, and you swallow trying not to stare as her bare breasts jostle with the motion. "Don't presume. Just because we're naked doesn't mean we're gonna fuck. Just because you get to touch my pussy doesn't mean you get to finger it."

"Sorry..." You mutter and she rolls her eyes with a huff.

"Stop apologizing, dumbass." She looks down at your still-hard cock, staring for a moment before cracking a smile. "Hey, do you remember that time I slapped you in here and you but your tongue so hard it started bleeding?" She smirks, mocking an open-handed blow to your cheek.

You narrow your eyes. "Yes." You were sleeping over for a late-night study session. You were both in pajamas, and hers were... Revealing. You suppose yours were too. Thus the slap.

"Do you remember why I slapped you?" She waggles her eyebrows as she steps towards you, casually letting your erection brush against her leg.

"Ya, ya, I got hard." You step over to the table, pulling slightly up as you lean back against it. "You're hot, okay?"

"That was what, sophomore year?" Mel pulls a chair around in front of you, sitting down and sliding in between your legs, her eyes staying on yours as your cock intercedes between you.

"Um, ya, I think so..." You swallow as she smirks up at you.

"That was the first time it was on purpose." Her voice half-cracks and you blink. On purpose? "Those pajamas were, like, a million years old. Thread bare and so tight. I mean, the bottoms actually burst a seam when I'd put them on. Max... I asked you over to study just to wear them."

She licks her lips, blushing. Flashing her tits and pussy in the car? No. Stripping naked just inside her front door? Nothing. Me rubbing her pussy? No big deal.

This story? An embarrassing admission.

"After my parents went down I went upstairs to change. I took off all my clothes, even my underwear, and put on my middle school pajamas. I can remember my heart racing."

"You... Got me hard just so you could slap me?" The fuck?

"No, I mean, like..." She's honestly stumbling. "I don't know. I, like, I didn't know what I was doing. And then there was your cock, sticking out in front of me, inside those pajamas bottoms... I reacted."

You try to react, but fail. You look down at the beautiful young girl sitting in the chair between your legs, blushing almost nervously up at you.

And at your very stiff cock...

"Thanks for not slapping me this time?" You crack a smile and she beams like a wave of happiness washing over her.

"Well, let's just say I think I know what I'm doing now..." She licks her lips, eyeing your cock. "In fact, so, I was in just such a situation the other day, and no slapping occurred at all."

"Is that so?" You swallow, her eyes glued to your erection.

"It is, definitely. In fact, I mean, that was hardly the first cock I'd sucked." Mel's suddenly calm tone wouldn't be out of place back at that study session... "But I tried something new and he came buckets, you know?"

"Really?" You swallow, your best friend's face leaning in, mere inches from your cock.

"This little loose flesh under the tip, where it parts? I just, like, teased at that with my tongue, and he practically exploded!"

"He did?" You can feel her breath...

"Do you think I'm about to suck your cock, Max?" Mel smirks up at you.

You swallow. "I certainly wouldn't presume that. You've set clear expectations. I imagine I'll be slapped shortly?" You smile nervously down.

She grins. "Nah. Here, I'll show you what I mean..." She's setting clear verbal boundaries now alright...

Her tongue slips out as she grins up at you, her tongue the only part of her touching you as it makes gentle but firm contact with the underside of the tip of your cock.

"Fuck..." You shudder as Mel's tongue teases your cock.

She pulls back briefly. "Ready for the next lesson?" Her tongue flits back out and you shudder once more in reply.