I think it depends on the couple, my wife used to love being ass fucked hard and build up her orgasm by rubbing her clit, then make me pull out and go straight into her pussy as she came, she said it was the most powerful way to get off. I hear what you are saying, but it does depend.
From the second she appears you can tell she's up for fun!! That beautiful black cock slides nicely in and sets about rounding out that hole nicely!! I love those natural tits and just wish she was nude for the whole scene! His cum looks to be amazing quality and you can see she has been well fucked as she is red raw inside as she tries to pus it out. She eats it up with delight which is good to see and shows appreciation. I would love to be down there with my tongue cleaning out her asshole and then sucking him clean!!