[Shiromitsu Mochi] Onee-chan wa Otouto ga Suki Kyoudai Koubi Kiroku [Eng][MTL]

A teasing older sister whose affection for her younger brother has hardened into a direct proposition, she first appears in a school uniform and later in maid and bunny-girl costumes, moving their awkward relationship through café conversations, voyeuristic setups, and openly sexual confrontations. Her comically confident, full-bodied teasing—her enormous breasts emphasized beneath sailor, apron, and leotard fabrics—contrasts with his increasingly desperate reactions as the bedroom staging grows more intimate. What begins as awkward restraint collapses into rough, transgressive sex involving anal penetration, double penetration, and edging, with references to semen, surrender, and her control leaving a messy record of forbidden desire.