My sis didn't know I was home. One thing led to another and she got a rubber cock from under the bed, then placed it on plywood and started to masturbate her pussy in a crouching position. Seeing her naked buttocks, I became so aroused that I decided to replace the rubber with a real one. Without asking, I got behind and thrust my stiff cock into her vagina. Search engine optimized keyword friendly adult video featuring my sis and her smutty masturbation with a real penis.