A slow-burn erotic tale centered around forbidden sibling desires, this narrative delves into the transformative power of a cursed cock ring that alters the user's body and fertility. The story follows Catherine and Zack as they navigate the consequences of the ring's magic, leading to intense, taboo encounters and a deep exploration of breeding and transformation themes.

Zack's bratty younger sister. Mischevious, secretly attracted to her brother, but ultimately a total tease. She envies his popularity with girls but doesn't quite understand why he gets all the attention. Currently home from college for the summer. Short, cute, and small breasts.

Catherine

Catherine's older brother. Secretly a virgin, despite his popularity with girls. Has quite the femboy build and has definitely been mistaken for a girl before. Extremely cute but has a cock that would make other boys jealous. 

rostonderric

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