[Koyama Shigeru] Witch's Failure ~Gyakushu no Harama Sex~ (2D Comic Magazine Mesugaki Haramase Seisai! Wakarase Chakushou de Omedeta Mama Debut Vol. 1)

A smug brat witch who bottles monster seed for her potions finally bites off more than she can brew when two horned orcs decide her flat chest and tight little body are the perfect ingredient instead — and her taunts about "raw energy" and harvesting turn to panicked demands to stop as the tables reverse. What starts as her gloating over her captured pig escalate into a struggle where her defiant threats dissolve into ahegao-faced surrender, complete with a cruel reveal of her beloved Leo's photo and an ending that leaves her collared, swollen-bellied, and declaring she's never been happier.