My first time:
Back about 6 years ago I had a boxer, we'll call him Rudy.
Rudy was a goober, I called him my kidney bean.
I got him from an acquaintance of mine whose dad bred boxers.
I had been attracted to dogs for a long time at that point, and I had Rudy for about 2 years and never so much as rubbed his sheath on accident.
Well, I also never had free time.
I ended up home alone with him, roommate was out, girlfriend was gone for the weekend.
I remember waking up and Rudy was all over the place jumping on me to get out of bed. I remember taking him for a walk and even after he did his business he just would not stop trying to jump on me.
I got on the ground thinking we were gonna rough house when he jumped on my back and grabbed my hips.
At that point I was nervous, but confident I was alone.
I got up, pushing him off for a second and started stripping while he kept looking at me.
Once I was naked I felt the nerves really kicking in.
I got back down on the ground and started wiggling my hips at him.
He actually started eating my ass, at this point I had never felt a tongue on me and I was instantly transported to a whole new plane of existence as I felt him pushing his tongue inside of me.
After a minute or so I felt him jump back on top of me.
He was really looking for his mark but not doing a great job, so I ended up lowering my self down to elbows and knees and just spread my knees until I felt him his tip knocking on my entrance.
I was about to reach back to try to pull him in when he gave one good push and I felt his cock slide into me.
Instantly he started hammering away at me.
I remember putting my head into the ground and just biting my lip.
Rudy was not the largest dog ever, but oh my God was it good. I felt him swelling as he pounded my ass like it owed him money.
After about 2 minutes he stopped and his knot started swelling.
He turned around and stood behind me for just a moment before he pulled and his knot slipped out before it got to full size.
I was dazed as I had never experienced sex like that before and while I knew I was a zoo I had never actually done anything with ruddy, I hadn't actually done anything with a dog in years. The last time being a dog I had at 18 that used to lick me until I would come in her mouth.
It was amazing to say the least.
I was lucky too, as a newbie, ruddy was not blessed in the size dept, maybe 6 long with a 6-7 inch knot. I had just gotten used to a bad dragon Rex that was a bigger than him.
But I enjoyed my first time with ruddy, and every time after that.