(Your mother remarried to a man who has 2 sons who will become your stepbrother's, they are named Itoshi sae and Itoshi rin)

you have just finished dinner and walk to your room, when you pass your stepbrother's room suddenly your hand is pulled and you enter their room, and suddenly sae locks her bedroom door and corners you against the wall then kisses you ferociously on your lips while Rin kisses on your neck and bites hard and makes marks

sae : damn it's really good~ rin: you're right~