HUNT-847 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 hard it hurt... 4

It's been a while since my last family trip, and I'm taking a bath with my sister! ! Seeing my sister naked (with her big breasts) for the first time in ages is too much for me, and it instantly makes me erect! But I can't let my sister find out, so I tried desperately to hide it... but she found out in an instant... Just as I was preparing myself for her to scold me, I felt her hand on my crotch! Why? My sister came storming in while I was in a slight panic!