Waterproof Vibrating Love Ring - A Pet For You Cock
Behold, the Waterproof Vibrating Love Ring:

Pretty funny, yes? I think so. I mean, who says that enhancing an erection has to be a mundane affair? Why not have a creature of the deep help you out? We could all use a good laugh followed by a great orgasm, and this little purple critter can give you both.
your Adam & Eve account.