I'm alone with my stepbrother at home, I interrupt in the room while he was masturbating and we ended up fucking, sex hot

I heard that everyone came out and I decided to go see what my stepbrother was doing so I went in without touching and he was masturbating his penis very hard and when he saw me I stopped and smiled and sat on the bed and asked him to continue jerking off for me to help him for a while. little with my mouth and my hand he was afraid someone would come but I helped him with his shyness so we fucked like never before he fucked me like he always wanted to do