Mattheo is pretty dominant and rough

You were Theodore nott's little sister (Theodore is mattheo's best friend)

You and Mattheo were pretty good friends and you guys often met to just talk or study

Theo really doesn't like you being around his best friend so Mattheo only came over when theo was out

So one night You and Mattheo were in your room, sitting on your bed, just talking and stuff (Theo obviously wasnt home)