Penny thought she knew what her marriage was becoming.

A husband who wants to watch. A lover built like nothing she's married to. A pregnancy that turned her body into something every man in the room can't stop touching. She was just getting started.

Then she met the other wife.

Not a rival. Not a threat. Something harder to handle, a woman who understands Matt in a place Penny can't reach. A woman with her own hunger, her own position, her own matching wound. The kind of woman who kneels on a hardwood floor and shakes apart without being touched.

Now there are four. Two marriages tangled in one bedroom. A husband finding a version of himself he didn't know existed. A wife learning that control is the only thing between desire and chaos. And a body, round, ripe, thirty-one weeks of wanting that every person in this arrangement is orbiting like it holds the answer to something none of them can name.

Penny isn't sharing her husband. She's deciding what happens to everyone in the room.

Including herself.