A dark turn
When the guy getting the butt plug is all into it, but the other guy is slacking off, and his dong goes limp and bends like a broken spaghetti.
He was giving it his all, but his buddy was just like, 'Whatever.'
His dong went soft and bent like it had a bad day.
He was into it, but the other guy was barely trying. His dick looked like it was asking for mercy.