Well if penis can't be shown, then I will settle with non sexual shit. Or stuff you are not supposed to jack off too.

I like feet. Barefeet are considered nudity by the way.

You say you like underwear. I do. However I have to see the dick at some point.

I like bulges and shit like that. But it would be a bonus to see his dick at some point again.

I like feet too. If a guy simply shows his feet, that's good enough. It would be a bonus if I could see his dick. lol.

I like socks too. But again, I want to see his soles at some point.

I like piss and watersports. But again, I have to see his penis.

I like guys fully clothed and getting their clothes wet. But once more, I have to see his dick.