My Giant Stepbrother's Hidden Breeding Contract: A Slow-Burn Taboo Free Use Dark Romance Thriller

By Lux Rivera

She never expected her new stepbrother to be a 6'10" wall of muscle with a breeding kink and zero boundaries.

When innocent Elowen moves into her giant alpha stepbrother's luxury penthouse after their parents' sudden marriage, she's desperate for a place to stay.

What she gets instead is a filthy, written contract that changes everything...

He offers her free rent in exchange for becoming his personal free use toy - available anytime, anywhere, no questions asked. No birth control. No limits except one safe word. He wants to claim her, stretch her, and breed her until she's carrying his baby.

What starts as a reluctant arrangement quickly becomes an obsession. He wakes her with his massive cock, fucks her on the kitchen counter while she tries to work, and makes her keep every drop inside her. The size difference is obscene. The dirty talk is filthy. And the way he looks at her like she already belongs to him is terrifying... and addictive.

But there's a secret he's been hiding - one that will shatter everything she thought she knew about their connection.

This is a slow-burn taboo dark romance packed with intense size kink, free use, breeding, somnophilia, and emotional depth. If you love giant alpha heroes, petite heroines, forced proximity, and a shocking twist that changes everything, this book is for you.

All characters are consenting adults 18+. This is a work of fiction intended for mature audiences only. HEA guaranteed.

• Format: Paperback
• Language: English
• ISBN: B0H87RPBY6
• ISBN13: 9798186440918
• Release Date: July 2026
• Publisher: Independently Published
• Length: 178 Pages
• Weight: 0.36 lbs.
• Dimensions: 0.5" x 5.0" x 8.0"