From the front as well as from behind - well, absolutely flat woman. Only one advantage is obvious - well-designed orifices. And of course due to the flat buttocks it's very convenient to pull your partner in the anus, even without bending her over. And I don't see anything else interesting in this lady! The man is basically of age, so probably the determining parameter for him is the age of the woman and the possibility to work her anally!
A father licked his daughter's asshole to show her how much he loves her. And then it was her turn to show that feeling to her father. And she did her best - pleasing his cock with her mouth and tight slit. He seemed pleased and rewarded her wet lips with his seed.