[MOOR-067]

My older brother-in-law is such a pervert that our sexual compatibility is off the charts and it's the best. Mio Aizawa

My older sister got married. At first glance, her partner was a plain, slightly older man. But after meeting him a few times, I discovered he's a dangerously perverted freak. I'm actually a secret slut too... We enjoy each other as sex friends where we can both unleash our sexual desires. My brother-in-law and I have the perfect relationship, serving as outlets for each other's perversions. Of course, it's a secret from my sister. But honestly, I kind of wish I had married him instead. [Mio] is single and a total pervert. She used to work an office job but quit and is now a freelancer. In school, she was on the table tennis team. Her memories include becoming a convenience store clerk and doing naughty things in the back room and at a night shrine. She can be both S and M. She wants to go all the way with both. Her favorite actress is Yū Kawakami. She's not good with deep throat. The play she wants to try is to tease a guy to his limit and then get attacked by him. She likes having her feet licked. Bondage, NTR, groping play, and after acting like a dominatrix, getting counterattacked... She definitely has stronger M tendencies. Where her brother-in-law and I met up was... a love hotel. It had a kinky setup with restraints. "It's not just a love hotel. It's a playroom styled like a men's esthetic salon," my brother-in-law said. What started was an erotic esthetic role-play. But the role-play escalated... Mio came multiple times. "That's fast, isn't it? You're cumming already," my brother-in-law said. "But you're just too good, brother-in-law... so..." Mio replied. The roles reversed. From there, it turned into dominatrix sex. "I'm going to get my revenge," Mio said. "Then I'll get my revenge after that," my brother-in-law replied. They even called over a male friend and escalated to a creampie threesome! The intense play of these perverted, non-blood-related siblings unfolds.