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I'd been dating Mark for three months. He was a 25 year old god. His 6'2" frame was ripped with smooth muscles. He had short blond hair, light grey eyes and a really handsome face and strong jaw. He loved getting fucked and had taken many cocks, the biggest being a 12" black cock. He also loved fucking with his gorgeous 8" cock.

Mark and I were very open about fantasy and also invited other men to play sexually with us together. However, I told Mark I wanted to start using him like a whore. The idea turned him on, and he gave me permission to proceed. I created an account for him online and included some great nude pics of him. I had no shortage of men I talked to on his behalf, but I wanted the best for Mark.

I started talking to a very hot banker named Kyle who was always horny. A self-proclaimed jock and amateur bodybuilder, his profile stated he was 6'5" tall with a shaved head and beard and 11" cock. He sent me his pics, which confirmed the description and added to that one very sexy face with gorgeous blue eyes. I told him I was the boyfriend and that I wanted him to fuck my boyfriend, but that I wanted to be there to watch. He was very into that. We coordinated that I would have him come to my boyfriend's house where Mark would be waiting. They would start fucking, giving him permission to use Mark as his slut...however he wanted. Then I would walk in the house 20 minutes later and sneak down the hall and peek in the door and watch them fuck until I joined in. We set up the date and time a few days later.

I simply told Mark he had a client coming and he was to make him very happy and that I would be in the room and watch for awhile until I join in.

The day arrived. I couldn't wait for the day to get over to live out this fantasy. However, I got an unexpected text from Kyle, "Left work an hour early...couldn't wait to fill my new slut with my big cock. Pretty sure you won't get him back."

He followed it with a photo of Mark straining to get all that cock in his mouth, cum oozing out of his mouth.

I was nervous. I ran to my car. It would take me 20 minutes to get home, meaning by then Mark and Kyle would have been fucking for close to two hours. This was not the plan. I drove as fast as I could.

I got to Mark's house and went to the front door. It was locked. I walked to the back of the house where I knew Mark kept an extra key. As I grabbed for the key, I could hear them moaning from outside. I stopped to listen to the deep muffled roars of what must be Kyle and then Marks pleasured begging in return.

I ran back to the front of the house and got in, surrounded now by the clear shouts from the bedroom...the pounding of the headboard into the wall, the squeak of the mattress and their moans to one another.

"You like that big dick bitch?"
"Uh-huh." Mark whines back.
"This is the only cock your gonna want isn't it?"
"Oh ya! Everyday...fuck me!"
"Ya bitch...I'm your new man. You can look forward to this beast fucking you nonstop."

They kept up their banter as I tiptoed to the room and peeked into see Mark on his stomach spread eagle, clinging to the mattress and Kyle ramming him from behind. Mark looked exhausted but was begging for more.

Kyle pulled out, revealing the biggest cock I've ever seen. He ordered Mark to flip over and proceeded to push his knees to his chest and plow his gaping, used hole from that angle.

"How's that, baby?"
"Oh ya...fuck me."
"Fuck me what?"
"Fuck me MASTER!"

They were staring into each other's eyes, their connection was obvious. It was also clear neither anticipated my presence.

"You ready for another load? Open wide."
Kyle pulled out again. He brought his huge beast to Mark's open, eager mouth and dumped a big, thick load of cum into it.

"That's it...take it all. That's four big loads for you, Cum Slut."

Then, he leaned over and the two made out, mixing the hot cum in their mouths.

"You sure like big cock baby." Kyle said as he laid his massive body on his back.
Mark crawled up and laid his head on Kyle's massive pecs. "I crave cock like yours Master."
"I don't think anything else can satisfy my slut after this."
"No Sir."

They looked into each other's eyes until Kyle drew Mark up to his mouth and they started making out again. The kiss grew more and more passionate until Mark climbed on top of Kyle. Kyle's cock had already grown stiff again.

"Damn, you just can't get enough of this beast."
"No Sir." Mark agreed.

It wasn't more than ten minutes and Mark was right back on the cock riding it like a champion bull rider, each of their muscles rippling.

Kyle flipped Mark onto his back without slipping out. He rammed his cock in without mercy, pulled out, grabbed Mark's jaw to open his mouth and squirted another big load inside.

"I own you, Cum Slut." Kyle groaned. Mark nodded, cum leaking down his chin. I shifted my feet, which caused the floor to squeak.

"Is that you?" Kyle yelled.
I walked in.
"I thought you told him you were cancelling." Mark said to Kyle.

Kyle answered my puzzled face. "I knew you were there the whole time. I wanted to make sure you saw for yourself that I own this slut now. You got that?"

I nodded.

"I've giving him five loads already today, and he's gonna take a lot more tonight. Then, I'm going to keep fucking my slut all weekend long. You can stay and watch, but only if you serve us. You got that?"

I nodded again.

"Now, get us something to drink boy."

I walked to the kitchen, knowing my new place, hearing them start their fucking again.