Yes (through door)

Quietly creeping up to the stall, you peek through the crack between the door and the stall. You are greeted with an astonishing sight:

Lukas, a popular jock, standing on the toilet seat, holding some kid you don't know. Both are stark naked, and it is extremely obvious that Lukas has his dick up the skinny kid's ass. The kid also has a massive boner, almost impossibly big for his small size. Both are moaning like dogs in heat, although Lukas's is more of a growl than a moan.

You jolt back in surprise, so quickly you fall on your ass, hitting your head on the sink behind you.

The moans suddenly go silent.

Struggling to regain your footing you hear frantic whispering--although that may just be the concussion talking--and then the stall door opens, revealing the smaller boy hiding behind Lukas's large, toned torso.

He kneels down next to you, foot-long cock swinging freely. "We bothering you, freshy?"

"I'm not a freshman, dude," you reply, rubbing your bruised head and trying to look anywhere but his dick. "I'm John. Remember me? We had freshman year math together? And sophomore year gym?"

"Oh yeahhh" Lukas says, snapping his fingers. "You're that kid we all called gay after we caught you staring at Jamal's dick!"

"And look where we are now," you say, glancing noticeably at the naked boy.

"Hey," Lukas snaps, grabbing your face. "Leave him out of this. I'm out here squatting naked on the floor to figure out why you were peeping, not so you can question my taste in fuck buddies!"

"I wasn't peeping!" you protest. "I just heard weird noises and--"

Lukas interrupts you with roaring laughter. "That's the worst excuse than when I first man Mark over there. He claimed he fell asleep leaning against my bedroom door during a party!

But you can't be peeking like that, dude! I don't care what makes your dick wet, just--"

The boy apparently named Mark interrupts him by whispering something in his ear. Lukas grins.

"You know, whether you leave or not, me and Mark are gonna get back to it. You could always join...?"