[Atage] Slutty Brat Karin-chan has Already been Trained! (COMIC LO 2022-09) [The Unseelie Court]

Karin is a smug little brat who mocks a classmate's love letter and vows to toss it in the trash, never suspecting the lovestruck boy will follow her home and discover her secret: she's already the thoroughly trained plaything of a bald older man who broke her in long ago. Caught mid-service, drooling over her master's cock and rimming him on command, Karin panics when Hinata peeks in, but the depraved old man sees an audience as the perfect chance to demonstrate his handiwork, pinning her down and ordering her to perform for her stunned admirer. What follows is a sweat-drenched exhibition of forced obedience and ahegao-eyed begging to be bred, ending in a humiliating front-row nakadashi meant to sear the image into the poor boy's mind forever.