The sister who came into my life due to my parents' remarriage tends to treat me like a child because of my youthful appearance and often uses me for her own convenience. I found her, who was clearly a gal and flashy, quite bothersome. My sun-tanned sister would always order me to apply aftercare oil on her body when she returned from the salon. Although I reluctantly complied, every time I applied the oil and made her body glisten, I felt aroused… My sister, who thinks of me as a mere child, doesn't suspect anything even when I touch her sensitive areas. So, I always take the opportunity to give her an erotic massage as payback for using me.
