
Three years after marriage, my wife became pregnant. She said she wanted to give birth at her parents' home, so she went back to her hometown. I was thinking that living alone for a while might be nice, but my wife's sister came to help with housework. My sister-in-law had grown up completely and had a good figure and was attractive. I knew I shouldn't, but I couldn't help but look at her as a woman. I felt uneasy just thinking about being alone with her in the same house. Then, I saw my sister-in-law masturbating and couldn't resist approaching her...




















Riho self-pleasuring so boldly... and with her sister's vibrator, no less... So lewd, was she frustrated? Getting caught by her brother-in-law and scolded for it... Riho discovering pleasure... The sight of her going wild with a double attack of a vibrator and manual stimulation, her hips thrusting... it was a breathtaking spectacle! ... Oh, she's even bringing her own pussy to her mouth and licking it... and then being vigorously thrust with a cock, those erotic nipples shaking... it's just amazing! ... Personally, I think Riho is sexier when she's the dominant one, not when she's being dominated... That's why this work feels a little lacking... it doesn't quite get me going... I think it would have been more exciting if she'd shown more of her true nature and dominated her brother-in-law's cock...
Is Matsumoto Riho, playing the role of a step-sister, the caring type who can't refuse her older sister's requests? You'd want to enjoy things comfortably on your own, but wouldn't you get tired of a tense atmosphere? Normally, that would be the case, but it's possible because of the composition that makes it interesting as an AV fantasy. That's why it shows things you wouldn't normally think of in a video, and that's why you get so hooked on this situation!