You put on the beast brief you picked up to try it out. Just as you put it on warmth spend through out your body in a pleasurable manner causing you to moan. You felt your cock get hard and pressure buildup in it and started to jack off to relieve it. You cummed a few minutes later, you were about to take it off when you saw fur growing on you. You were about to panic when the warmth came back causing you to jack off again while you changed into a new form. You feel a tangling behind your balls and when you felt there you found you have a pussy as you watch a pair of breasts grow on your chest stopping at dd-cup. Your face changed to become a vixen's as nine tails grew from your tail bone. "Aaahhh!" You cry out in pleasure as you came.
You panted as you looked at your new body. You think about what to do next.