[gumi_chocolate_pine] Boku no Shinseikatsu ~Chijo Gyaru Onee-chan to Dosukebe ga Yattekita~

A boy settling into his new life after his father's remarriage finds himself in big trouble the moment his thick, busty gyaru step-sister comes home drenched in sweat and barely squeezed into her school uniform. She wastes no time pinning him down and sinking her soaked pussy onto his cock — but when his equally voluptuous step-mother catches them, she bares her own enormous breasts and shamelessly joins in, cheating right under her new husband's roof. Soon mother and daughter are competing over who gets to smother him between their massive tits and milk him dry in a sweaty threesome that leaves the overwhelmed boy wondering if trouble ever felt so good.