I really like when a guy is fully enjoying a female ass!
I myself like to deep dive and put my tongue in her gape and swirl around, especially if she is pissing at the same time. I usually start with some fingering and then ram my thumb in while fingering her clit with two fingers, the "bowling grip". Then I lick my fingers and let her taste too.
It would be great if we could see more of this in your scenes. I think it works especially great if it is a two girl one guy scene where the guy and the girl takes turn on the ass with some atogm in between.
Face sitting is also great if one girl is riding the dick while they guy tongue the other girl.
What do you think?