The next morning I woke to the rocking motion of my bed and opened my eyes to see him kneeling above me, straddling my chest. We were both still naked and he leaned forward to put a wide leather collar around my neck, his balls and already half-hard cock grinding against my belly.
Still half asleep, I laid there and let him put the collar on me, starting to remember and regret the drunken blowjob I had given him in our shared room the night before. The fact that I could still faintly taste and smell his cock made it even worse.
He attached a leash to the collar and climbed off, pulling me out of bed and over to the wall of floor-to-ceiling windows. The drapes were open and we had a wide view of the desert with the sun beginning to rise over the mountains.
I glanced down to see his fully hard cock pointing straight at me. He put his hand on my shoulder and pushed me down saying "on your hands and knees facing out."
When I got down there he pulled me forward by the leash until my head was almost touching the window. Then he reached down and pulled my head up by my hair so I was looking out and said "Look out and remember this day. Today I'm making you my bitch." His words shocked me but instead of resisting I simply hung my head in silence, wondering if this was really happening and why I wasn't stopping him.
He left me there for a minute and when he came back he got on his knees behind me and I heard him snap open a plastic bottle. I knew what was coming and soon felt cool lube dripping and running down into my crack. He spread the lube up and down with his thumb, teasing me and working it deeper until the tip of his thumb found and stopped still right on my asshole.
I knew I should get away from him and stop the craziness from going any further, but something inside kept me right where I was. "Ok slut, tell me what you want," he said.
Until that moment I had no idea that I wanted anything, except maybe to forget what had happened the night before. But then my mouth opened and words came out in a quiet voice. "Please fuck me," I said.
"What," he said, "I can't hear you."
"Please fuck me," I said louder.
"So you want my thumb up your tight little hiney." he said.
"Yes, please," I said.
His hand immediately pulled away and gave me a hard, burning swat across my right cheek. I jumped forward and banged my head against the heavy window glass, causing him to chuckle. "Well then put your face in the carpet and your ass up high and reach back with both hands and spread those slutty cheeks for me," he said.
As I obeyed his perverted commands I realized that it was all over. I had lost. There was no way I was going to stop him and he was going to have me and use me any way he wanted to. He put the tip of his thumb back at my well-lubricated hole and said "Now back up on it bitch. Show me how much you want it up your butt."
I pushed back and his thick thumb slowly worked its way into my depths. He wiggled it in me and teased my balls with his other fingers. It felt so good I let out a deep groan, and once again heard him laughing. At that point we both knew he totally had me. "You obviously love my thumb so let me see you make love to it," he jeered.
I started moving on his thumb, shamelessly trying to get it in as far as possible each time I went back and trying not to bang my head again each time I went forward. Soon I had a good rhythm going and he began to match it with a hard spank at the deep end of each thrust, alternating from one cheek to the other. My head spun with twisted, confused feelings. We had started on this trip as good friends but now I was just his bimbo, riding his thumb with my ass like a bitch in heat. I wondered how things could get any more humiliating. Soon I found out.
After a few minutes he pulled his thumb out of my rear end and held it under my nose, making me breathe in the smell of my defeat and his conquest before he pushed it into my mouth. When his thumb was wet with my saliva he popped it out of my mouth and rubbed it all over my face. Then his thumb went back to my asshole and back to my mouth and face several more times, like an artist painting me with my shame. The utter nastiness of the moment demolished whatever remained of my self-control, and he saw it at once. He laughed and said "Well I think I've got you loosened up now. So I want you to tell me everything you want, and I mean everything, and I'm going to beat you until you do."