女の子たちは巨大な勃起のための薬を作り、何度も彼とセックスする

The girls reveal they have come up with a potion that will create a four hour erection! They apply it to the lucky guys boner and share his prick, sucking and slobbering on it before taking turns enjoying cunt filling cock rides. Then, they tease a beakers worth of cum from his stiff wood. Turns out the potion works after all!