[Reducing Mosaic]EBOD-788 Her big-breasted younger sister forcibly tagged along on our couple's trip and kept seducing me with her I-cup breasts through her yukata for two days. Nagi Yuki.

I thought it was going to be a dream couple's trip with her, but then her younger sister decided to come along too… When I met her on the day of the trip, I found out that she was the complete opposite of my girlfriend—she had huge breasts, and my gaze was inevitably drawn to them… Plus, at night, while my girlfriend wasn't around, she tried to seduce me with those breasts! “Do you like big tits?” “If it weren’t for me, you’d be cumming inside.” My usually indifferent girlfriend pushed me to my limit! I couldn’t help but fuck her sister multiple times in the absence of my girlfriend, turning our trip into an affair.