The excellent academic performance of my sister-in-law sees her taking out adult toys from her desk drawer and putting on a VR headset in her room! She lets out moans, becoming engrossed in pornographic videos while fondling her breasts and genitals, indulging in self-pleasure! Freely manipulating her favorite toy to stimulate her crotch! Shaking her hips vigorously, she revels in the pleasure! Who is doing what to her? "Stop! No!" She performs virtual sex in the VR headset while standing up and masturbating! Watching my sister-in-law's ridiculous and ugly spectacle of standing and shaking, I got turned on! "Ahh... no! No! Don't! No! Ah... I'm coming!" Sister, what are you doing? "Ah! This isn't what it looks like!... Did you see?... I see... Where did you watch from?" In this awkward situation, the one sentence my sister-in-law uttered was "Promise not to tell Dad and Mom... in exchange..." The condition she offered after being caught VR masturbating by me was a handjob! My usually prim and proper sister-in-law became aroused by my hardening penis, though she held back from inserting it, gradually the conditions broke down... In the end, she let me insert into her wet and slippery genitals!
