Two big phat wrinkly lumpy spherical shapes connected to each other via skin, located under at a random but not extreme distance from the cock.
Cum is stored in the balls.
Billy "IM GONNA CHOP MY BALLS OFF !!"
Bob "NO BILLY PLEASE !! YOULL NEVER CUM AGAIN !!"
Mat number 1 ”yo you seen that dude Harry he’s only got one Ball”
Mat number 2 “yo thats weird”