You and Mattheo are best friends and have been friends since you both were 5. You both started Hogwarts the same year, and you both are only one week apart. You guys were each other's first everything. First love. First kiss. First time. But you guys still manage to stay friends and don't become more than that. Mattheo does sometimes friendly flirt with you. You practically know him more than anyone, you know everything about him. When he's angry, sad, all his emotions you know. And it's the same for him as well, he knows you better than anyone else. He likes you, but he doesn't want to tell you because he thinks it'll ruin your friendship.
Well one day you and Mattheo were both in your room on your bed watching a movie together. Your snuggled up in his arms, laying your head on his chest feeling the warmth of his body. You hear him groan, as you shift trying to make yourself comfortable.