
Yutaka visits his friend's house and accidentally catches a glimpse of his friend's older sister, Aki, fresh out of the shower. Unable to hide his arousal, he's caught by Aki, who hasn't been intimate with her husband in a long time. She decides to initiate him, but things get out of hand when the 'innocent' boy turns into an insatiable beast, keeping her up all night with his relentless stamina.










As others have pointed out, there's no way this actor is a virgin. It would've been better if the plot was just 'the virgin brother's friend turns out to be a sex machine'.
*It's too much of a stretch to cast Isedon as a virgin, but I think it's a good casting to have a lot of fun with. Aki-chan ends up messing with a virgin, but what did she expect to find out that it turned out to be a monkey? As soon as she saw her face, she wanted to do things with Aki-chan, but in the end Aki-chan was supposed to give up on her as well. It was a very strange story where Aki became addicted to the monkey's cock and started wanting to do it. Even so, it's a beautiful naked body.
The guy playing the virgin looks like a total player, which is annoying. I wish they'd cast an actor who actually looks like a virgin. There are so many works like this. Producers really need to think this through.
Sasaki Aki-san might be a bit older than the other actresses, but she has a mysterious cuteness. Even in this role, where she's set as the older woman, her charm really stands out when she's with the men. Her happy expression when she sees their energetic cocks is the best. Just watching her carefully lick the frenulum makes me want to explode. The way she takes the glans into her mouth and rolls it around is so erotic, and her deepthroat is top-tier. The standing thigh-job while wearing underwear looks amazing too. You can really enjoy Aki-san's well-honed sex techniques. A perfect score!
The bathroom scene was quite a turn-on and really good. I hope a 'bimajo' (beautiful middle-aged woman) like Aki-chan keeps going for a long time.