Breathing? That was a thing, right? It was a thing he was supposed to be doing... It was a little bit uncomfortable at first, not particularly painful. Then again, he was no stranger to this part. Shut up, Dean. He experimented. And unlike some people who would remain nameless, Dean, Sam had had exams. It was more... strange than painful. It didn't take long for those sensations to begin to melt into pleasure. He rolled his hips guiding Dean's fingers to that sweet spot. Jesus Christ! Sam could see spots.
Sam had to keep reminding himself to breathe. He gripped onto Dean's arms, practically clinging to him to ground himself. "What did you expect?" He managed to growl the words out through gritted teeth. Think unsexy thoughts. Don't come. Think unsexy thoughts. "You realise you're gonna be my first, right?"
He curled one hand around the back of Dean's skull and dragged him into another kiss.