DVAJ-534 Helping my sister who goes to the Japanese salon every day by applying oil, I'm getting hard. My ultimate near-sexual sensation massage operation: Ran-ka

My parents remarried and made a new sister, and because of my appearance that tends to be seen as younger, she treats me like a child and uses me for something. I thought I was shy of her who was really a gal and flashy. When my tanning sister comes home from the salon, she always orders me to apply some aftercare oil. She reluctantly listens to what I say, but I'm getting horny with her oiled and wet shiny body. My sister, who thinks she's a small child of mine, doesn't seem suspicious when she touches her fragile parts. So I set up her erotic massage with the revenge on her sister who always uses me as a chin.