I Was So Obsessed With My New VR Virtual Masturbation Device That I Had No Idea That My Little Sister Was Watching Me The Whole Time I Felt This Real Sensation That Someone Was Touching My Cock, So When I Took Off My Goggles...!?

妹に見られているとも知らず、手に入れたVRでバーチャルオナニーに没頭中の僕。リアルに誰かにチ○ポを触られている気がしてゴーグルを外すと…！？妹が僕のチ○ポをしごきながら「本物のほうが気持ちイイよ」と濡れたマ○コに…！