My Alter Ego Is A Cock Slut Pt 2

He kept stroking my cock, slow strokes, gently squeezing the head, then stroking the shaft again. He put his mouth over the head and swirled his tongue around. 
Part 1
*****
As I looked up at the man I’d just sucked off, I’d never felt so physically uneasy. If you’d asked me if I’d ever let someone put me on my knees and force me into servicing their cock, I’d have given you a disgusted ‘fuck off’. Even while I knew that was exactly what Edan, my dissociative identity disorder alter, loved best.
But this was me, here, in this cold and frankly terrifying BDSM dungeon full of equipment and objects clearly meant to be put inside arseholes like mine—and Malcolm was a stranger who’d just cum in my mouth. I could still taste it, felt it coating my tongue. I was also pretty sure I was wearing his cum on my face, and possibly other fluids that I didn’t want to think about.
My hands were tied behind my back, I was gagged with my mouth stretched open like some sideshow clown waiting for a ping-pong ball, and what was really fucking with my mind was how hard I was, despite being fucking terrified of what he was going to do to me next.
Malcolm alone couldn’t have forced me into this. Only Edan had that power. If I was anyone’s bitch it was his, since he had me by the balls. And by every other part of my body.
Malcolm put a hand under my arm and pulled me to my feet. He undid the device keeping my mouth open and took it off.
I stretched my aching jaw and tried to speak, but Edan made sure nothing came out.
“You’re doing well,” said Malcolm. “Keep it up and we’ll both have a good night.”
“Thank you,” Edan...