My first time was with my dog, Áilu, who actually initiated though I was not against it in the slightest. I was 20, still living in the home with my mom and dad though they were both out on a vacation down south and I was at home taking care of the reindeer for the week. Essentially, I always felt more being naked in my room, and as the days of that week went I would shower, then walk naked to my bedroom and just plop down on my chair and play some video games or something. Áilu constantly following me around because, well, he is my bestie. That time though, he did not. I got to my bedroom, started doing some of the ol' "disgracing the lord," when he padded in. I stopped, of course, but he came along and curiously started to lick my fingers, and then he moved on to more private spots. I got very into it very quickly, and let him do what he wanted, until I finished. One of my fastest orgasms ever.
Couple days later I had it all planned out on how I wanted to get him interested enough to mount me, but he actually beat me to it, mounting me while I was in bed. I think I was playing on my 3DS or something at the time and he climbed onto the bed, and just started dry humping me. I realized that it was happening now and I just started to shift in position to help him with entry and suddenly I was in for the hardest, highest paced pounding of my life with the biggest insertion I had taken at that point. He tried for a good couple of minutes to get the knot in with repeated bashes until I came, where he managed to slip it in. It was amazing.