HUNT-743 I never thought I'd get an erection from my big sister's naked body (with big breasts)! I went on a family trip and took a bath with my sister for the first time in a while. Her breasts were bigger than I imagined, and I lost my composure and my crotch was so rock hard it hurt... 2

On a family trip, I ended up taking a bath in an open-air bath with my sister, just the two of us! It would have been one thing if I'd been a child, but seeing my sister naked now that she's grown into a woman's body... As expected, I got a boner... I can't! She has massive breasts, after all. No man can resist that kind of sexiness! In the midst of this awkward atmosphere, my sister reached out and put her hand on my fully erect crotch!