Kill Switch by Penelope Douglas

How naïve she still is. “Not every man has to be paid to
watch his woman get fucked by another guy.”
“Why would he enjoy that?”
“I think you know,” I shot back, eyeing her with
amusement. I knew all about her little romp in the steam room
at Hunter-Bailey with Michael and Kai.
And as much as I thought I’d be turned on by the reality of
what Rika had enjoyed in that room, it actually pissed me off.
I wasn’t quite sure why, either. Maybe because I didn’t get my
turn, and I felt left out of the fun?
Or maybe, even though I knew her enough to know she
didn’t let anything happen to her that she didn’t want, a small
part of me still felt like she’d been… I don’t know…
Used.
I didn’t know why I gave a shit, though. Michael and Kai
had shared a woman before. I just didn’t want to think about it
with Erika.
But it did mean one thing good. My old friends still liked
to play and they’d be prime game pieces.
“You see, Rika,” I told her. “There are people in the world
who are destined to be played. Victims who wouldn’t be able
to change their fate even if they went back and lived life over a
thousand different ways.” I made a show of letting my eyes
fall down her form. “And then there are players. Like you and
me.” I gestured to the threesome. “Which piece would you
move next?”
She didn’t look away from the challenge this time, only
hesitated before finally surveying the group. Her gaze finally
rested on the boyfriend. “His instinct is to be the better man.”
Very good.
“He feels competitive, yes,” I replied, impressed. “It pisses
him off and gets him hard. He wants to fuck her and show her
who the real man is. To keep him in the game, we need to use
him. Make him feel important.”
She was quick. She had the same thought I did.