His ;)
Cap is low poly if you compare it to morphed genital. I deleted prop which I made for picture but number of polygons was similar to the sam areo on "HipNoGen.obj".
I think this is easiest way to make "censored" figure. Alternate hip obj requires additional morphs. If you replace genital only, no new morphs on hip are required.

I remember when I used dynamic clothes with Apollo Maximus. Scaled penis made drapes weird and calculation was very long.
I made genitals invisible, but clothes draped unnatural on hole in the hip. Then I used dummy props - low res balls primitive.