Here are several ideas I want to throw out here. One thing I have learned is that often I get an idea, and can never seem to get the story written. Either because I am writing other stories at the time, or that I try and I realize that something is just not working. So here are many I have had.
And some I may still write someday, but maybe it will still give inspiration for another to try.
A guy meets a great gal, and it starts slow. Romantic, dates, they really get to like each other. And only later after he starts to fall for her does he realize she is a well known porn actress.
Post-apocalyptic, in a world where disease has rendered men almost extinct. Men are kept locked away by the powerful women, who exchange their being used to those most loyal. Then a rare "Wild unattached man" appears, and the women fight and take sides in an attempt to secure him for themselves.
Do-over, with a difference. Shorter chapters than most in here, where the character dies, then lives the last 20 or so years of their lives again. Only to die yet again at the same point in time, and appear back at the start of their last do-over. Rinse and repeat.
Akin to "Autobiography of a Flea". The narrator is a pet, and describes the wild antics of their female owner. They are not turned on, and sometimes confused by her antics.
A semi-horror story. A female wolf is bitten by a werewolf, and at the full moon turns into a human.
A scientist invents a formula that he realizes when tried on a female rat causes her to fuck any male rats in the area. He deices to try it himself, hoping it would cause a female researcher he had the hots for have the uncontrollable desire to fuck him. Only to realize it changes his gender to female, and causes all men around him the almost uncontrollable desire to fuck him (now her).