Usually when I'm thinking about angels topping demons they're mindlessly gooning inside their hole, head empty of anything but the pleasure they're feeling, unable to concentrate beyond chasing their orgasm. An overwhelming desire to breed that they were never built to feel has utterly enraptured them body and soul, and now they're helpless to resist it.
Or perhaps not helpless; they could stop at any point since they're the ones doing the fucking. They're simply too weak not to give in to the aching want that's suddenly bloomed inside them, even knowing that there's no turning back from this, and only exile and damnation awaits at the end.
However this is a fun idea too














