Clamp

Okay if I clamp the balls and dick together could that increase my length if I keep it on for a few hours while watching the color?

Depends on what you’re clamping with and how tight it is. Anything tighter than a cock ring is likely to be dangerous if worn for “a few hours.”

Oh, okay well maybe not a few hours then at least not clamped tight at all but just enough to have the dick and balls together.