Old man and stepdaughter have anal sex

A middle-aged man and his stepdaughter have always had a bit of a strange relationship. He's always felt like there's been something off about it, but he can't quite put his finger on what it is. Maybe it's because he's always had this strange attraction to her, and he's been trying to resist it for years. But one night, after they've both had a few drinks, things start to heat up between them. He tries to keep things professional, but she's not having any of it. She starts to seduce him, and soon enough, they're both naked on the couch, her giving him a blowjob. But that's not enough for him. He wants to take things a bit further, and he starts to tease her with a butt plug. Eventually, he can't resist anymore and he starts to fuck her, but not before making sure the door is locked.