[Saba Satoru] Little Sister (Tekiseiki) [LoliAce] [Decensored]

Yui has spent her whole life falling short of her perfect older sister—until the day that sister's boyfriend comes over and decides the tiny girl clutching her book is far more his type. A friendly greeting melts into stolen kisses and eager worship between her small thighs, her petite body sweating, drooling, and sobbing through climax after climax as he confesses he wishes he'd met her first. By the time he's pumping a hot load deep inside her quivering slit, Yui is crying tears of joy at finally being chosen over her onee-chan.