Disclaimer: I do not own Harry Potter. If i did, it wouldn't be appropriate for eight yearolds to read.
Warning: Kinda graphic gay sex.
Harry rounded the corner, and froze. He was about to gasp, but his brain was still working well enough to clasp a hand over his mouth.
Against the wall was Blaise Zabini, the beautiful Slytherin, with his pants down and head thrown back, moaning lowly. In between his legs was a familiar Slytherin, with blonde hair and his mouth slightly open. Blaise's eyes were screwed shut, as Draco thrust into him, and his moans grew louder until Draco moved forward and closed his mouth over the other's.
Harry couldn't move. He was hidden by the wall, as he watched the two.
Blaise tangled a hand in Draco's hair, and his body jerked as Draco gripped his hips tighter, his mouth still connected to Blaise's, and thrust harder into him. Draco panted, when Blaise hid his face in the crook of his neck. Draco's pants were open, his hair tousled, his lips red and a blush on his cheeks, and Harry found that he never looked better.
Draco closed his eyes, biting his lip, and at the same time Blaise threw his head back again, his mouth open and his fingers tightening their grip on Draco's robes. Draco let out a muffled groan, and then his body went limp. Blaise let out a sound that was something between a sigh and a moan. Draco let his hands fall from Blaise's hips, and the dark-haired Slytherin untangled his legs from around the blonde's waist, and lowered them to the floor.
He supported himself against the wall, as he pulled on his pants. Draco rested his hand on the wall, while zipping his pants with the other. He smirked weakly, and Blaise pressed a chaste kiss to his cheek, before walking away. Luckily it was the other way, not where Harry was hiding.
Harry's heart thumped loudly in his chest, way too fast. As Draco was about to walk his way, Harry snapped out of his trance and ran for it, the look on Draco's face when he came still fresh in his mind.
A/N: Others than me who thinks Harry will have something to jerk off to for the next say, months? Jealous much, Harry?