mature, scott/stiles, 1736
because stiles is a little shit and it's absolutely my favorite thing about him.
"You asshole, I am not holding you up for the next half hour." Scott pinches Stiles' side where he's holding him up but all it does it make Stiles cling tighter and slip one hand up higher, then back down, skin to skin this time under his boxers. Scott hisses. "Stiles!"
Laughing softly, Stiles runs his nose up Scott's neck to nibble at his ear. With purpose.
Scott sighs. Everything is a challenge. He should have known better.
"I bet I can make you come before we have to get off the train, and before I do."