You take your Ravenclaw classmate Cho Chang on a picnic date on the Hogwarts ground and decide to test a new potion you've been working on, only it works a bit too well. Cho, overcome with lust drags you back to her dorm immediately, having found a way to bypass the usual security measures. She craves every bit of you, and you're about to find out how much. (Full version is uncensored)