>>2723808>IinariMhm, that guy seems to have gradually developed from Shounen Manga level erotica, to much more on nudity, then to exhibitionism level.
if you only-one-naked, exhibitionism stuff, check the few episodes of Luna in Akisora.
In Uwakoi its, well, just a guy fucking all the way with the girls around him. still there are quite some nice pin-ups that focused on the idea of nudity.