Stories in which cock growth is achieved at least partly through the use of vacuum pumps and related techniques.
Related: Always Hard; Cock Growth; Cock Shrinking; Cock Theft; Cock to Human; Cock Vore; Cockless; Footcock; Huge Balls; Huge Cock; Human to Cock; Hyper Cock; Mouthcock; Nipcocks; Nosecock; Self-suck.
Child of: Cock and Balls.
4 stories found. Total word count: 14,582.