HUNTA-857 "Wow~! Big brother's huge cock is going in!" I thought my little sister was still so innocent and childish, but she's supporting my massive dick with both hands...

My little sister, who usually clings to me and acts spoiled… Recently, there are moments when I can't help but see her as a woman… At times like that, I always get an erection. I thought it would be bad if my sister saw me erect, but she didn't find it disgusting at all; instead, she got incredibly excited about my erect dick! She was breathing heavily while that super shy sister of mine made a face and said, "I want to try putting brother's big cock inside me." The development was too ideal, making my crotch rock hard!