Your identical twin of a
penis. Exactly the same dimensions, skin tone and "flaccid to
hard" growth velocity. Similar to
Joey from Friends hand twin, only it's your man-junk.
Everybody has one.
"This dick is your dick, this dick is my dick, oh wait , that's your dick, no wait it's my dick"
Brad and
Chad stood at urinals...
Brad: OMG, dude - I think we're Doppelwängers!!
Chad: Dude, what's a Doppelwänger?
Brad: Dude! We have identical dicks!
Chad: Dude... That's Rad!