When I went back to my girlfriend's family home for a two-night, three-day visit while living together, what awaited me was a wonderful older sister with a huge, plump butt! Even though I felt guilty about my girlfriend, I couldn't resist the temptation of her big butt and ended up continuously ejaculating inside her in a wild, piston-like motion...! Completely overwhelmed by her relentless pressing, I embraced my fate, grabbed her big butt with a fierce grip, and continued to ejaculate inside her fiercely! Her sister, whose sexual desire was out of control, attacked me with her aroused, plump big butt, crushing me!
