I thought I was finally going to have sex with her for the first time, but then her older sister came home and interrupted us. It was supposed to be a day without sex, but as soon as her sister returned, she locked onto me, and even with my girlfriend right beside me, she secretly jerked me off. Ever since that day, whenever I go to her house, her sister always tries to seduce me. Panty shots! Cleavage! Using her long legs to stimulate my dick. The hopeless me ends up having sex with her sister, and my girlfriend doesn't know.
