Horny In-Law Wants Your Hot Seed (teaser)

Your beautiful and busty sis-in-law Claudia is the only one still up, and smiles when you get home late. She asks you to hang out for a little while, explaining she has got a favour that she wants to ask from you. Claudia says she has been trying to get pregnant for months now, and she's worried her husband might not be up to the task. That's where you come in - you are the only one who looks enough like him to help, to make sure no one will be able to tell it isn't his. She explains she is desperate, that she wants you to cum in her tight pussy, filling her up with your seed and knocking her up. Won't you help, just this once?