Custom vid: You, your Wife and your step-Family are invited to your step-Mother-in-Laws for dinner. Your clumsy step-Mother-in-law "accidentally" spills a bevvy on your nice clean shirt, she suggests you go upstairs to her bedroom to find a new shirt to wear. When she realises that you've been a while she goes to check on you, and walk in on you jerking off into her panties! Shocked at first, she realises this is her perfect opportunity to take revenge on her step-daughter. You both masterbate together, all while your step-Mother-in-Law says some pretty horrible things about your Family - particularly your cunt of a Wife. You end up cumming all over your step-Mother-in-Laws panties just as your Wife walks in.