YRNKMTNDVAJ-641 - I'm not allowed to masturbate by my girlfriend's orders, but with the temptation of my little devil sister's panty shots and breasts, I might be at my limit.Mito Wakui

My girlfriend told me a rumor that she had picked up from somewhere, saying, ``It seems like having sex after a month of abstinence feels the best!'', so I forced myself into a life of masturbation abstinence. It's painful enough to suppress the daily routine of masturbation, but the biggest problem is the existence of her younger sister, Mito-chan. She's been acting like she's interested in me for a while now, and up until now she's been treating me lightly because she's older than me... but Mito-chan's temptations have escalated while I'm not allowed to masturbate! He purposefully shows off his cleavage, his skirt flashes, and his panties show off, and his erection keeps pounding all the time. One day, when Mito's rationality began to reach its limit, Mito-chan heard a devil's whisper. "As long as I'm wearing a rubber band...it's not cheating even if I have sex, right?" *This work is "[29th day of abstinence...] I promised to have sex that felt the best after not masturbating for a month, but I succumbed to the temptation of reverse NTR from my girlfriend's sister and even after I used up a whole box of condoms, I couldn't stop having raw sex and cum multiple times. This is an excerpt from "Mito Wakui" (product number: dvaj00641).