我发现我的饥渴继妹在看色情片，最后操了她，这样她就可以达到高潮

I enter my chubby sister's room and surprise her watching porn and masturbating, I offer her if she wants to fuck so she cums and she says yes. Then we fuck in several positions doggy style, missionary, reverse cowgirl and she ends up having an orgasm in missionary position while imagining that the guy in the porn video is fucking her.