More info I couldn't fit on here without it... not making sense. lol

Nautilus sexual organs(for males) are two specialized tentacles. That's it. And they mostly move by jet propulsion, which I didn't get drawn here unfortunately, but between those tentacles there is a little duct that is used just for that.

Also James is now my mascot. For realsies. I'm gonna draw this guy everywhere. God, I love chambered nautilus so muuuuch hnnng.