"Let's take a bath with you, big brother! 'Hidden big breasts... No, no, I ended up going to the small bath with my big-breasted little sister who is not completely hidden, and when I got a full erection...

Even now that my younger sister has become a female student, she still wants to take a bath with me, so I'm in trouble! Because I love my sister... I'm worried about my younger sister's breasts, so of course I refuse because I didn't want to get in... However, it was so persistent that I couldn't refuse, and the two of them went into a narrow bath together, which was far larger than I expected, so I couldn't take my eyes off my sister's big breasts! On the contrary, the bath is so small that my sister's breasts hit my arms! Of course, if you hit it all, you'll get a full erection! My sister found out if I had an erection...