Trained by her Futa Stepsister: Taboo, Futa-on-female

Worried that her inexperience might lead her boyfriend to look elsewhere, Claire turns to her stepsister Jordan for advise and a few pointers. But she's shocked to find that Jordan is hiding a massive secret between her legs–a secret that makes her uniquely qualified to help Claire out and one she's more than happy to share.

As Claire loses herself in the intense pleasures of her unexpectedly practical lessons, she finds herself forgetting why she originally wanted them. But Jordan had her own reasons for agreeing to help and it won't be long before Claire discovers exactly what it is her stepsister is training her for...