Club Wicked 3.5- This is a prequel to My Wicked Masters, Club Wicked 4

Best mates Liam and Rory have an accidental drunken sexual encounter, spurred on by the usually straight Rory's powerful attraction to his equally straight friend. Afterwards, Liam freaks out, and Rory's worried he'll lose not only his roommate, but also his best friend. But when Rory brings home his sexy and eager submissive, Susie, and proposes a menage, the men just may have found a way to repair the rift, but only if Liam can overcome his conservative upbringing and trust his natural instinct to Dominate.

Club Wicked Reading Order
My Wicked Valentine #1
My Wicked Nanny #2
My Wicked Devil #3
My Wicked Trainers #3.5- a prequel to My Wicked Masters
My Wicked Masters#4