The experiment was supposed to test temptation.

Now it’s testing loyalty.

Tate thought Blackwood House had already pushed every boundary possible. Six beautiful women. One forbidden social experiment. Cameras behind the walls, rules designed to break, and a bond that somehow became more than lust, more than chaos, more than anyone at Blackwood University expected.

But Phase Two changes everything.

The university calls it the Expanded Proximity Protocol. Tate and the women call it exactly what it is: a trap.

New participants are brought into the house. Old friendships become pressure points. Secrets that once stayed behind locked doors start spreading through the halls. Hallie, Kaia, Rowan, Elara, Briar, and Sienna have already chosen Tate—and each other—but now the experiment wants to know what happens when the circle widens, jealousy gets weaponized, and every private desire becomes data.

The deeper Tate falls, the harder it becomes to pretend this is just a study.

Especially when Rowan’s secret threatens to detonate his oldest friendship.

Especially when Briar uncovers patterns buried inside Blackwood’s polished lies.

Especially when the women stop competing for his attention and start becoming something far more dangerous:

A family.

But someone behind the scenes has been planning this from the beginning. The prompts, the cameras, the contracts, the emotional pressure—it all leads to a final phase designed to strip away the last illusion of privacy.

Because Blackwood House doesn’t just want to know who breaks the rules.

It wants to know who survives when there’s no escape.

Breaking Rules is book two in the House Experiment trilogy, a high-heat college harem romance with forbidden temptation, group dynamics, jealous tension, chosen-family bonds, and escalating secrets. For mature readers.