When my excellent sister-in-law finishes her studies, she secretly takes out her adult toys and puts on her VR goggles! She talks to herself while immersing herself in erotic videos, playing with her breasts and repeatedly chanting "Amazing! Amazing!" "No! Not in a place like this!" Where? What is she doing? While admiring her pussy, she has simulated sex in the virtual space inside the goggles! She turns on the electric vibrator and with her legs spread in an M-shape, it goes in and out of her squishy pussy! She gets on all fours, sticks out her ass, and writhes in agony as the vibrator goes in and out from behind! She puts on the goggles and comes! "Ah! I'm coming! Watch me come!" What are you doing, sister? "Wow! What a surprise! Why are you here?... I... How long have you been here? You haven't seen the whole thing, have you?" In such an awkward situation, the only thing my sister-in-law said was, "Promise me you won't tell Mom and Dad... but in exchange..." My sister-in-law, who I saw masturbating in VR, said she'd do something naughty in exchange for keeping it a secret from our parents, and the condition she set was a handjob...! My usually neat and tidy sister-in-law got turned on by my hardening dick, and although she was holding back that I shouldn't put it in, her condition gradually fell apart... In the end, she let me put it in her lustful, dripping pussy!