Slavery: A series of erotic games (Book 03)
I watched Cindy swallow it all, before she contacted Lyft.
After she left, Julia asked Lisa if she would feel strange fucking Cindy.
"Some states recognize sexual relationships created by marriage as incestuous. California isn't one of them, and even if it was, you're not married to Master. We recognize you as an equal partner in our relationship, but the State doesn't. Could you fuck Cindy?"
"I fucked her parents on Memorial Day," Lisa said. "I suppose I could."
"At the time, our relationship was considered temporary," Julia said. "It's not anymore. You're permanently attached to us now. I won't ask you to be the surrogate if you would feel squeamish."