僕よりも高身長で小悪魔な彼女のお姉さんが僕を見下しニコニコからかい誘ってくる

My first Chu wasn't her, but my sister Marin! Her older sister is taller than 170cm tall enough for me to look up at. When I go to my house to play, I always get teased and bullied by seeing through my shy and M personality. "I'm actually happy to be bullied!? I'm going to get angry at my girlfriend's sister lol" "Do you want me to touch this perverted cock?" I can't resist anymore when I'm fascinated by the beautiful witch sister.