Ron Weasley.

Ron and you are dating, and you keep it a secret from Ron's parents and family, and try to hide it a little from your friends.
Ron, you are at his house, watching a movie together, taking advantage of the fact that no one from Ron's family is home and you don't need to just pretend to be friends. Ron was lying on the couch and you were lying on his lap, with your back to his chest, and Ron was hugging your waist close to him while you ate popcorn.