With her mouth and her phone

As Isabel approaches, you smile up at her. "Hi Isabel. Take a knee," you instruct, indicating the floor in front of you.

"Oh my god," she mutters as she drops to her knees in front of you. "I am going to literally die."

"Not until I'm done with you," you reply easily. Now that your teacher and the rest of the class are ignoring you, you're back in familiar territory. Just like the bus. "Pull my cock out and start sucking."

"Uuuuugh," she groans even as she reaches for your waistband.

"Isabel, you will not disturb my class. John, that goes for you, too."

"Yes ma'am, we'll be quiet," you reply as Isabel, reaching new heights of mortification, draws your quickly-hardening member out of your pants. She clearly wants to hesitate, but is prevented by the magic that is free use. She leans down and, disgust clear on her face, begins licking the underside of your shaft.

Ahh, that's nice. Nothing like the soft tongue of a bitchy jock to get you through a boring class. As she works your length, you reach down and pluck the cell phone out of her hand where she's been trying and failing to hide it. It's locked, but it has a face ID. Well, that's easy.

"Isabel," you say softly, "look up at me." You pull your erection to the side and point the phone screen at her, getting a glare in return. She looks like she wants to argue with you, but a quick glance to the front of the room and she thinks better of it. "Good girl. Go back to sucking." She returns to her minimalist interpretation of "sucking" involving just the tip of her tongue, but you don't mind. It adds a nice ambiance as you do some telephonic detective work. What was she doing that was worth risking getting caught on her phone?

Sure enough, her most recent app was a messaging app. And at the top of the list, with messages in the last few minutes, was a conversation with "❤️✨Sexiboy✨❤️". Barf. But the content was... spicy. Suggestive and often lewd. Oh, and the pictures.

Selfies in a bra, full cleavage on display. A picture of herself in the mirror in what looks like a bathroom of this very school, flashing her bra. Actually, that picture was sent today. You wonder...

"Take your shirt off, Isabel." She pauses her **** tongue worship and rolls her eyes so hard you hope she stretched first. Then she sits back, grabs the hem of her shirt with crossed arms, and then lifts it up and off in a practiced motion. Ooh, nice.

The bra is a push-up, displaying plenty more cleavage now that the tank top is out of the way. And most interestingly, it's the same bra as in the pictures. She's been taking lewds today and sending them to this sparkle heart guy. And here you had to go and interrupt. At the thought, you feel a sense of solidarity with the mysterious "sexiboy." You really shouldn't keep him from getting his raunchy pictures. It's practically against the guy code.

"Back to licking. The balls this time." As Isabel scoffs and dutifully leans her face down for some good ball worship, you start typing.

Isabel: Sorry, I got caught on my phone in class
❤️✨Sexiboy✨❤️: Shit, really? What happened?
Isabel: It was going to be detention, but I got out of it.
❤️✨Sexiboy✨❤️: Haha, nice. How? You show a little skin?
Isabel: Sort of...

The *CLICK* of the phone's camera made Isabel's eyes go wide, but you direct her to focus on her job. You send the picture to Sexiboy: haughty Isabel, face obscured by your hard cock as she sucks on your sack.

❤️✨Sexiboy✨❤️: Fuck! Whose dick is that? There's no way that's happening right now, don't fuck with me.
Isabel: I'll prove it. What should I do with this big cock?
❤️✨Sexiboy✨❤️: ...
❤️✨Sexiboy✨❤️: Fuck it. Deepthroat it.

Did you and sexiboy just become best friends?

You pass along the suggestion to Isabel, which from you is an unbreakable order, and Isabel takes a deep breath. She then proceeds to take your cock into her mouth, but gags and withdraws after only getting a third of the way down. With an apologetic look, she whispers, "I need to get it wet first," then proceeds to lay big sloppy licks all over your shaft. It feels amazing. After a few moments of this, she tries again to take your length.

This time she gets a little over halfway before she comes up coughing. "Fuck, how does a little nerd like you have suck a big dick?" She glares up at you as if you should be sorry for inconveniencing her. Ever the trooper, Isabel tries again, and this time her blonde curls manage to tickle your thighs as her lips meet the base of your cock.

*CLICK*

Isabel comes up for air, then tries to **** her way down again. You send the picture, then scroll up while waiting for his reply. It doesn't look like she's ever sent any actual nudes to this guy. Just teases, bra and panties, that kind of stuff.

You bet you're rocking his world today.

❤️✨Sexiboy✨❤️: Well damn. Idk if that's proof, though. How about you rub that cock all over your slutty face?

Your friendship with sexiboy only grows stronger. He, too, is a man of elegance and taste. You stand up and pull your cock out of her mouth.

"Hold still." With the camera still zoomed in on her face, you rub your swollen manhood back and forth across her face, smearing her makeup with her own deepthroat saliva. When she looks nice and ruined, you give her a few good smacks on her face with your cock to finish things off.

You sit back down, instruct her to bob her mouth up and down on your cock, and send the video of her degradation to her boytoy.

❤️✨Sexiboy✨❤️: Daaaamn! Shit, I should have asked for a shot of those amazing tits. Wait, how are you doing all this in school? And who's taking the pictures?

The man has a point. Not with his questions, but with his yearning for tits. You think both you, and by extension, he, have earned the sight of Isabel's rack.

"Okay Isabel, take your bra off." She rolls her eyes again but reaches behind her back and unhooks her bra, freeing her big glorious tits, all without pausing her slurping on your throbbing cock.

You reach down and get a good feel for stacked blonde Isabel's tits. They're big, but unlike your sister's, they're more soft and pliant than they are perky. In fact, you're sure that they'd fail the pencil test. Isabel definitely needs her pushup bras.