With her upside down in a pile-driver position and my ass facing her, she would fuck me in the ass with a boy-toy while I return the favor with my hard cock in her ass.
I realize this is a run-on sentence but thanks for asking.
Juicy, sweaty sex with her on top and her hands at shoulder width on either side of my head to support her while she power pounds my dick. When I say juicy, sweaty I mean a constant trickle down my butt and both bodies completely covered with sweat. Even her long hair dripping sweat on me. A one time experience for me on the first night I met her. So that would be my all time favorite thing to do again.
Realistically, I love DATY with a very juicy lady. For me, I consider DATY as me giving and receiving simultaneously, because while I give her pleasure, she gives me the enjoyment of wonderful flavor and aroma.