A loving father always takes care of his daughter. He'll go in the shower if he has to, and he'll go in the bedroom. And the girl, by all accounts, really needs her parent's attention. Yeah, it's not how she imagined it, but what does she know about parenting? Daddy knows better than to teach her a lesson. This time the topic was sex between a man and a woman. And her daughter seemed to have learned it well. She was obedient while he was fucking her. Of course, she still had to reinforce the material, and Daddy promised to do that. Yeah, and she's got a lot of love for him, too.
I think the guy is far from a pioneer, the girlfriend is very confident in the anus! It feels like a lot of experience and regular practice. He's probably happy that he got into a well-developed anus, and he doesn't have to talk his girlfriend into it!