fred, two fingers in meredith, and realising his thumb was lonely, decides to go for a 3 pronged fork and immediately and painfully 'digs his own hole' with his thumb
triple penetration with your fingers, where the third orifice is created ad-hoc
"fred, two fingers in meredith, and realising his thumb was lonely, decides to go for a 3 pronged fork and immediately and painfully 'digs his own hole' with his thumb" What is the definition of "3 pronged fork"?