i thought my girlfriend's sister, karin, was a quiet girl, but it turns out she was a hidden pervert... i strangely agreed with "touching with your hands isn't cheating," and even though my girlfriend was sleeping next to me, i was taken by karin's honey trap handjob... it's a story about how i went crazy fucking her sister until i ejaculated many times with her devilish expression and hand technique, and my balls were completely dry...