부모님이 나가서 의붓여친과 섹스한다는 사실을 이용해

One afternoon my parents went out and left me in charge of my stupid stepbrother, I was very horny and my stepbrother was starting to awaken a sexual feeling in me, every time I saw him I got excited to such an extent that I had to go masturbate and now at last that we are alone it is time to take advantage and fuck him