Huh! Want to have sex with your older sister?!? A busty older sister, with an incredibly erect penis and premature ejaculation, is being teased and pleaded with by her younger brother when their parents are away. She pretends not to have ejaculated and goes on a rampage. (HMN-383)

What?! You want to have sex with your sister?!?! When her parents aren't home, her big-breasted older sister, Warm, is asked by her younger brother to help him with his erection! Provoked, she actually accepts... Even though it's just a one-time thing, her brother, who keeps ejaculating and suffers from premature ejaculation, pretends not to have ejaculated inside her and goes on a rampage, thrusting wildly! His penis is unstoppable, repeatedly stimulating her to orgasm! Although she realizes she's already been ejaculated inside her, she still feels the pleasure from it and proactively suggests having sex again, saying, "Even if Mom and Dad come back, we have to do it again."