that is quite a challenge and we're not sure if we can give it the proper treatment it deserves.
Well seeing that you include shorts of nude men and women interacting and do sex especially with the neat design, like this screenshot here
I still think maybe you can do a nudist spinoff of the Paradise Lust series taking place in the nudist resort on an island or forest, so you can play either a male or female to interact with the naked women in the nudist resort and have sex with them, just give it a try.
Perhaps you can start off with a small demo showing what the paradise lust spinoff would look like and see if people will like it , just give it a shot