The next day we ended up being too busy to have any fun after work. Despite the situation we'd found ourselves in, there were still errands to run and chores to do and the evening ended up being mostly consumed with that. Perhaps because of this distraction I found myself waking up a bit before our alarm that morning, with a rock hard erection. Usually of course my strategy in such a situation is to simply ignore it and try to go back to sleep. As I was trying to calm down however, I heard Marie shift slightly next to me in response to my restlessness and it occurred to me that there was no particular reason I had to go back to sleep in frustration.
I grabbed a bottle of lube from the nightstand near me and then carefully shifted to straddle Marie's body. She was laying on her stomach and she is such a heavy sleeper that she didn't notice even as the blankets came away from her. I took a moment to admire her back and butt, even in the dim light I could see the little plug poking out from between her butt cheeks. Dropping the lube nearby I leaned forward and placed my right palm between her shoulder blades, putting quite a bit of weight on her to keep her from struggling too much. At the same time my left hand began to tug on the butt plug, pulling it out and pushing it back into her ass. Heavy sleeper or not, this woke her up immediately and I as I expected she tensed up and tried to shift away. With me straddling her hips and my hand on her back though, there wasn't really anywhere she could go.
"Wha... get off!" she mumbled blearily, the confusion of sleep still heavy on her mind.
I leaned in even harder on my right hand, putting enough weight on her that it would restrict her breathing and bringing my head closer to hers.
"Quiet down, slut. It's almost morning, I'm going to be using this asshole."
Struggling just to draw breath, she didn't respond. As I eased up off of her however she seemed to be coming to her senses, her body relaxing somewhat.
"That's better. Open your mouth."
"Yes, Master," she said before complying.
I popped the plug out of her asshole and brought it up toward her mouth. I moved slowly, deliberately, so she could see what I was doing and understand my intention. Paused there with the plug fresh from her ass inches away from her mouth, she knew exactly what was coming and she could have protested. Instead she just meekly accepted it as I pushed the plug into her mouth.
"Good girl. Hold that in your mouth for now."
With that I sat back on my haunches, picking up the lube and spreading some over my cock and her asshole. WIthout any further preamble I pushed my cock into her butt, enjoying her whimper as I resumed my earlier position, my right hand again pushing down on her shoulder blades. I was leaning forward pretty heavily now, I could hear her strained breathing through her nose, the plug blocking her mouth. I fucked her slowly at first, taking my time enjoying every pained moan just as much as I was enjoying her tight asshole. As I increased the pace a bit I raised my left hand and gave her butt a good smack, enough to make her tense up again, her sphincter clenching around my shaft. I kept up the smacks, enough to make her ass red, it would no doubt be sore all day. There wasn't enough light to make out her face clearly, but I could practically hear the tears in her muffled cries.
Given the past couple of days, even this stimulation would take quite a while to make me come, and I didn't actually want to take too long. She still had to get ready for work, after all. Thinking how I could make it faster, a wicked grin spread across my face. I leaned all the way down on her, keeping my right forearm spread across her shoulder blades. Listening carefully I waited till I heard her exhale, then with my left hand I pinched her nostrils shut, using my palm to hold the plug in her mouth.
When someone tries to take a breath and can't, there's a pretty strong reflexive response, most people will freak out. Unsurprisingly, there's a part of your brain that really doesn't like it when you can't breathe, even if you're not yet low on oxygen. Marie is already a somewhat excitable person, so the panic set in immediately for her. Almost as soon as I closed her airways I was rewarded with a frantic struggle as she tried to escape. I'm not exactly an athlete, but I'm much larger than her, so she had no chance at all. Her ass tightened harder than I'd ever felt, I'm sure it would have forced me out if I wasn't already buried to the hilt. The tightness and the feeling of her panicked struggling was too much for me, I barely had time to enjoy it before I came, pushing her down into the bed with my thrusts and filling her up with cum. At the same time I removed my hand, pulling out the plug and she took a deep, shaky breath.
As the throes of orgasm faded I gently sawed my cock in and out of her ass, enjoying the residual pleasant feelings, until it was too soft to stay inside her. Sitting back on my haunches, I ran my hands over her back and butt. For her part, she merely lay there, catching her breath and waiting. I picked up the plug, put some lube on it, and re-inserted it into her asshole.
"That was fun slut," I said as I got off of her, "I'm sure you know what comes next."
"Yes, Master," she said, wearily moving herself between my legs, taking my cock into her mouth and gently sucking it clean. Without needing any instruction she was very thorough, licking my balls and all around my crotch, cleaning every last bit of lube, semen or whatever else. When she took my cock back into her mouth I placed a hand on her head and she obediently stopped, dutifully swallowing as I pissed into her mouth. I had to admit, I was getting to be quite a fan of having my own personal human toilet. When I was done, I lay back, gently stroking her hair. She stayed between my legs, softly sucking on the head of my cock, until a few minutes later the alarm went off.
The rest of the morning passed according to our developing routine: she staggered to the bathroom to shower and compose herself while I lazed around in bed a bit longer. When she was ready to leave she came to ask my permission again and again I checked to ensure the plug was in place before sending her on her way. I didn't think she'd remove it, but I enjoyed checking anyways.
That day I was very busy with work. Nothing exciting, just some unfortunate coincidences causing deadlines to pile up. Some of the things I'd ordered on Monday were delivered, so that was something to look forward to, but I didn't really have any time to plan. In fact I was still working when Marie came home that evening. She greeted me like usual, which I returned over my shoulder. Seeing that I was busy working, she just quietly got out of her clothes, put on her collar and, after a moment of uncertainty, came to kneel beside me. I thought about ordering her under my desk, but decided that in order to finish my work on time I would need to focus.
"You may have free time until I'm done," I said, patting her head.
"Okay Master, thank you," she responded.