The Spark Plug

For two years, Margot has driven across the country once a month for one reason only: her private maintenance sessions with Erin.

Bent over the kitchen table, she’s been carefully stretched, opened, and trained—month after month, size after size—until her body knows exactly how to take what it’s given. Erin’s hands have been relentless and precise, preparing Margot’s tightest, most forbidden place for the man who would finally claim it.

Now that man has arrived.

Brian is everything Erin promised: big, attentive, and dangerously possessive. When he bends Margot over and discovers exactly how well she’s been trained, he doesn’t hold back. He intends to test every inch of her preparation… and fill her deeper than she’s ever been filled before.

Some women get flowers and sweet words. Margot gets a master who knows precisely how wide she’s been opened— and plans to use every single millimeter.