I slowly roused from a wonderful dream to find that at least part of it was not a fantasy. I found myself still embraced from both sides by my kennel mates, though in slightly different circumstances.
My brown-haired boy was pressed firmly against me. I could feel his morning wood slowly sliding against my lower back, just grazing my cheeks. My back began to arch as gentle kisses and bites began to find their way to my neck, winding around my collar. His arms had reached around my chest, holding me against his chest in a tight embrace as he toyed with me into wakefulness.
On my other side, our fiery red-haired companion wanted nothing to do with subtlety. The tip of my cock was in her mouth, and I could feel her tongue embracing me, insisting that I give her what she wanted. One hand was holding me in place so I couldn't twitch out of the way while the other was exploring my rear entrance, looking for the trigger that would give her the salty treat she desired.
With their combined attention, I lasted as long as you would expect. Moments after I awoke in their embrace, a full-body spasm shook me as I came hard and fast. The arms around me locked me in place, and each aftershock of my orgasm shot more into the waiting mouth below me.
As I lay in a blissful state, my red-haired lover raised herself up and kissed me deeply, her mouth still sticky with my cum.
Behind me, a voice whispered, "Tonight, let's trade places."
I nodded against the chest behind me, glad to play another round of this game.
Sadly, that would have to wait as it was apparently time to start our day properly. We heard the sounds of our trainers coming down the corridor as we untangled our entwined limbs.
Our morning was a repeat of the first, greeted with breakfast and a thorough washing. The only difference was that our trainers rotated their duties. I was now paired with a different red collar, one that I hadn't seen before.
After being cleaned up and made presentable, we were led to our places in the practice room.
"Good Morning, Pets, " the instructor said as he entered the room. He began to walk down the line of paired trainers and pets. One thing that was very easy to notice was that he was sporting an impressive boner already. Whatever today's lesson was, he was very ready for it.
"Today is the day we cover what most people feel being at the bottom is all about. Getting fucked in the ass," he smiled, "in all the best ways."
"I see most of you made it to a size four last night. That's good. That'll be big enough for most partners. Of course, you still need to fit in number five before tomorrow," He continued his instructions while pacing and looking us over.
" Each of you will be paired with one of the red collars or myself, and unlike yesterday, your entire day will be with the one trainer. Your passing today means that you managed to have used your ass to make them cum at completion at least three times. No hands or mouths allowed. Each trainer was allowed to pick which of you they wanted to teach today, so make sure you thank them."
My trainer for the day was a big fellow in more ways than one. He Tall, broad, and muscled, not to mention packing a cock that looked like it would put a Clydesdale to shame.
"Well, Pet," he said with a pleasing baritone, "How about you show me that ass of yours, and we can get started." I eagerly turned so that my ass was up toward him.
As I felt him approach, he leaned in past me and I felt something pressing to my mouth. I reflexively opened it and felt the gag slide into place and the buckles securing around the back. "There ya go, no mouth remember?" he chuckled.
I nodded and spread my legs wider. "Oh, an eager one eh? Well, let's see what you can do."
He gently pulled the plug out of my ass, and I heard the pump of the lube he squirted on his hands. The cool slick sensation began rubbing in on my ass. I rocked back onto his fingers, feeling them slide inside briefly before he pulled back.
"You are ready, aren't you? I'm not going to say no to that." I then felt the pressure of his girthy cock starting to knock on my backdoor. I relaxed as much as I could, but he was huge. I felt it stretching me out more than I could ever remember.
Thankfully, he was slow and steady. He took his time, allowing me to stretch as he entered, his massive cock enlarging me as he pushed in. After what seemed like forever of two inches in and one inch back, I felt his balls slap against my ass. He grunted as he bottomed out. Then came the fucking. By the third full stroke, I had drool dripping from around my gag, moaning for all I was worth.
It lasted about five minutes. His massive cock had pushed hard on my insides, like hitting an orgasm command over and over. I spent my first load then. Making a mess on my mat, but he only slowed down enough to comment for a second. "Good Boy, now that you've made some room in there, how about I add some back."