IENFA-35503 My beautiful older sister, feeling sorry for my plain self, agreed to a thigh-rub style encounter on the promise that it would only involve rubbing. But it felt so good for both of us that things became very wet, and before we knew it, there was a smooth, unplanned insertion. Wait, is it in? Even then, we couldn’t stop, and it ended with an internal finish. Yui Kawagoe

A plain-looking man gets extremely excited by her defenseless appearance! Even though he knows it’s wrong, he can’t hold back and masturbates while thinking about his older sister. But she notices, and the atmosphere turns awkward! She says, If men get pent up, they have to let it out, right? I’ll help you with that, and gives him a handjob and oral attention, but he still can’t finish. Then she says, I can’t let you go all the way in, but rubbing it is okay, right?