I love big tits, but the girlfriend I finally managed to get is flat-chested and hates sex. Out of sheer frustration, I went to an Oppai Pub... and to my surprise, her younger sister, Rina-chan, was working there. What's more, she was in the middle of serving another customer, getting her huge tits kneaded by some old guy. A few days later, unable to resist, I requested Rina-chan. I played off her surprise, kneaded her tits relentlessly, and secretly fucked her for a creampie without the shop knowing! From that day on, even at her house, I've been kneading the busty sister's tits, turning it into my own personal Oppai Pub!