LULU-440 - Drugging my girlfriend's innocent athlete sister and turning her into my personal cum-dumpster

My girlfriend's sister is a pure-hearted athlete who only cares about her club activities. I tricked her into taking an aphrodisiac under the guise of an 'energy booster,' and the effects were instant. Watching her struggle with her newfound lust, she begins masturbating with an object, completely unaware of what's happening to her body. I couldn't resist, so I jumped in, ravished her sensitive pussy, and filled her up repeatedly until she was a mess of cum.