I was doing my homework for school and I heard my stepbrother making strange noises. He watched me studying and jerked off. When I noticed it, he tried to hide it. I went over, pulled the blanket off him, and saw his erect penis. I wanted to touch it, and I couldn't resist jerking off. I slobbered over him, jerking off with my hands and Tits until I got a lot of hot and delicious cum. It got on my stomach and I smeared it all over it. after all this, I went back to studies.