It's a story as old as bars: a man and a woman meet over drinks and in the absence of other commitments, spend a day or three in a torrid affair that may or may not lead to a deeper relationship.
In this case the man is a two-ton genetically engineered tiger superhero and the woman is a seven hundred pound alien weasel-thing, but the rough details are the same. A good time is had by all.
From the recent "Savage and the ziggurat" story.