Not Negotiable: A Medical, Friends-to-Lovers Romance (Trident Security Book 4)

Shelby Whitman has had a huge crush on the one man who deserves more than she can give him, so it's best to keep him at arm's length.

Dominant Parker Christiansen has been craving the perky, petite submissive ever since he laid his eyes on her, but she's turned down his every attempt to negotiate with her.

When Parker finds out Shelby's hiding a devastating secret from her friends, he steps in to help, and this time he won't take no for an answer. Can he convince her he's fallen in love with her, and if they only have this time together, they should make the best of it?

The following is the best reading order for the original Trident Security series and its intertwined spinoff series - Doms of The Covenant, Deimos, and TS Omega Team: 
TS Book 1 - Leather & Lace (Devon & Kristen) 
TS Book 2 - His Angel (Ian & Angie) 
TS Book 3 - Waiting For Him (Boomer & Kat) 
TS Book 3.5 - Not Negotiable: A Novella (Parker & Shelby) 
TS Book 4 - Topping the Alpha (Jake & Nick) 
TS Book 5 - Watching From the Shadows (Marco & Harper) 
TS Book 5.5 - Whiskey Tribute: A Novella (Curt & Dana) 
TS Book 6 - Tickle His Fancy (Brody & Fancy) No Way In Hell Book 1 & Book 2 (Co-authored with JB Havens)
TS Book 7 - Absolving His Sins (Carter & Jordyn) DOTC Book 1 - Double Down & Dirty (Gray, Remi, & Abigail)
TS Book 7.5 - Option Number Three (Mitch, Tyler, & Tori) TSOT Prequel - Mountain of EvilTSOT Book 1 - A Dead Man's Pulse (Logan & Dakota)
TS Book 8 - Salvaging His Soul (Jase & Brie) Deimos Book 1 - Handling Haven (Frisco & Haven)DOTC Book 2 - Entertaining Distraction (Mike & Charlotte)Deimos Book 2 - Cheating the Devil (Brad & Avery)
***The books of the Trident Security series and its spin-off series can be read as standalones, however, for optimum enjoyment they are best read in order.***The Trident Security series contains elements of the BDSM lifestyle, sensual romance, nail-biting suspense, and happily-ever-afters. 

• Watching From The Shadows: Trident Security Book 5
• Tickle His Fancy: Trident Security Book 6 (Trident Security Series)
• Whiskey Tribute: A Trident Security Series Novella - Book 5.5
• Waiting For Him: Trident Security Book 3
• Topping the Alpha: Trident Security Series
• Absolving His Sins: Trident Security Book 7
• His Angel: Trident Security Book 2
• Option Number Three: A Trident Security Novella - Book 7.5
• A Dead Man's Pulse: Trident Security Omega Team Book 1
• Salvaging His Soul: Trident Security Book 8