Cum in your pants (alternative)

You can't take it any longer. Linda is doing a great job. She is smiling at you and letting out a quiet moan from time to time. You can feel the heat of her pussy lips and how wet she is down there. You put your hands on her ass trying to help her move her hips and now you are pounding her really hard.

"Are you alright there John? You look like you're about to cum already." Linda says.

Your mind ignores her words as you fervently grind your cock against her ass, pleasure overtaking you. You feel the roundness of Linda's ass, remembering all the times you've wanked to it, and can think of nothing else but cumming at this point. Your cock is leaking so much precum in your boxers that there is a clear spot on them.

"You must really like my ass, huh, John?" Linda giggles.

This sends you over the edge and you finally reach orgasm, spewing ropes of cum in your boxers.

"Oh my god, I didn't think you'd actually cum just from my ass!" Linda says teasing you by continuing to grind on your cum-soaked crotch. She spreads out all the cum in your pants, soaking every inch of them.

"We got a first one here, Felicia!" She shouts across the classroom as she gets up and leaves you sitting there.

Everyone in the room, including Tom and Mark are looking at you, shocked that you came so quickly. You hear some giggles from the girls standing up. To your left Susan is laughing at your cum-covered state whilst she continues to hump Mark. You sit there embarrassed that you couldn't last longer, but relieved altogether that you got to cum using Linda's ass. As you get up and leave the room, you look through the window and see Tom and Mark getting handjobs from the girls, jealous and disappointed that you missed out.

That was a great day. You just regret that it ended so fast...