How about a typical harem story our of a anime or hentai novella, involving different types of WG, temporary transformations, a beach episode, etc., etc.
The Twist: Itβs revealed that the dude is actually a tomboy girl.
At first, theyβre weirded out (except the older ones) until they come around to thinking that its ok (maybe some have had bad relationships with men, some think that sheβs more sensual than a man, maybe they find out that they swing both ways).
The double plot twist reveals that sheβs super curvy as well. From there, more crazy shenanigans happens.