I masturbate so my stepbrother can soothe his hard cock. Subtitles.

We were in the room when I noticed that my stepbrother has his dick out, he tells me that he is always so horny and even though he fucks his girlfriend, he can't calm down that big dick of his, so an idea occurs to me, I take off my pants and leave let him see me masturbate maybe so I can calm his torment