
彼女の妹が彼女より可愛くて爆乳で僕のことが大好きらしくいつもノーブラおっぱいで誘惑してくるんです…。彼女が留守にしている時など常ににやにやセックスアピールしながら「エッチしよ?」とせがんでくるしおん。そんな妹に翻弄されて、ついにはデカパイでしかチンコが勃たなくなってしまった最低な僕…。「お姉ちゃんにはナイショだよ」小悪魔な妹のおっぱい密着誘惑に負けて彼女が居るのに我慢できず公開浮気セックス!










*A work in which her younger sister, On Yumi, tries her best to seduce her older sister's boyfriend with her breasts without a bra. The main character enjoys cheating sex with his devilish younger sister without telling his girlfriend, but... Since Shion-san seduces you closely, you can enjoy her cute face, but her play is weak. I wanted to see more of her innocent play.
It was amazing to be able to enjoy Shion-san's curvy body and breasts from a first-person perspective.
Lots of paizuri. The content is fine, but it's all POV. I don't really want to give high marks to a work where she doesn't properly interact with the guy, but the content itself wasn't bad.
I assume it's intentional, but the male's ejaculation volume is low. They say 'a lot came out,' but it's clearly not. It made me wonder if his heart wasn't in it, and Yumi-san also didn't seem very into it. Also, the man seems to have delayed ejaculation, so honestly, I think Yumi-san must have been exhausted. Though, I suppose that could be intentional too—that he couldn't finish because of the confusion of being seduced by her sister. Furthermore, and I think this is a directorial failure, her jealousy is too weak. It would have been more dramatic if she had warned her sister or shown more suspicion. It's an affair story, but it lacks the catharsis of 'What if I get caught... but I'm going to do it anyway!' Regardless, there's just no heart in it.
While short and busty is my preference, the other actresses in this series are just on another level, so she inevitably pales in comparison. Also, the fact that she stays clothed the whole time is a negative.