Several summers ago, I was doing some volunteer work at a local vet clinic.  Two other girls and I were responsible for the animals brought in the day prior to a surgery, or the animals that were kenneled there while the owners were on vacation.  Barb, Sue and I worked the "night shift" and some nights, things were more exciting for us than others.

This one particular night, my shift was to start at 9 p.m.  I was running a little late, and when I walked in there was Barb, on her hands and knees with a Boxer fucking the hell outta her!  She just looked over a me, panting hard herself and told me not to "knock it, til you've tried it"... The Boxer, who was in to be neutered the following day, was getting in one last good screw thanks to Barb.  Now, Barb is a gorgeous Jamaican woman, built like a brick shithouse, enormous breasts, and she and I have gotten it on several times on boring nights at the clinic. There she was, big tits swinging freely as this Boxer steadily pumped her, with a rhythm that could only be described as "disco"!   I had only been volunteering there for about 4 months and this was the first I knew that Barb shared my "love" of male dogs.  She did not know that I had had doggie sex many a time prior, and until then, I didn't know she partook in the love of animals!

So the Boxer kept screwing away, while I sat down in a chair and started to play with myself.  I was thoroughly enjoying watching my friend get this great fucking by a nice big Boxer, I fingered myself into an orgasm.  It seemed such a shame to have him castrated, if his owner only knew what a good sport he was about sexual pleasure!  Finally, after about 20 minutes of mad screwing, panting, moans, groans, yelps, barks, etc., he came all over the place. His dog cum was being shot out of Barb's pussy, as fast as it was being pumped in...  He finished at last, and began licking her pussy again for which she plopped over onto her back, long legs spread wide and let him gently lick her clean. Meanwhile, I was still fingering myself into yet another orgasm, this was a great sight to behold!

When they were done, Barb went to the back shower and when she came out, she told me she had to have a talk with me.  I just grinned. She told me that I really ought to give the bestiality thing a try.  Not wanting to disappoint her in her enthusiasm about this, I did not tell her that I had been fucking with dogs since the tender age of 14.  There was another dog being kenneled for a long weekend, and Barb asked me if I wanted to give dog-fucking a try while she watched!  I told her I was game for it, since we weren't doing much else.  Sue wasn't due for another hour or so, and since we were all pretty familiar with each other sexually, neither of us cared if she popped in on my session as I did with Barb's!!

Barb went to get the dog she had in mind for me... a Great Dane!! I acted all exasperated, the dog was enormous, and I KNEW that he would provide me with a very "full feeling" once he got his cock inside of me.  Barb said that she knew I could take a big dick, so that's why she brought in "Buck"... (She and I have this double-ended dildoe that is very long and thick and we have had some great fucks together with that)  This dogs balls were swinging as he walked.  So, already wet from masturbating while Barb was getting off with the dog, Buck walked over to me and I let him start sniffing my pussy.  Didn't take him long to want to start lapping at me and Barb took his collar off and let him have at it.  She sat down in the chair and prepared to start playing with herself, as she figured I would be getting licked and fucked for a good while. She was right!! GOD, was she right!!

Buck continued to lap at my pussy, and I was leaning back in the secretary chair just thrusting my hips up and down to his steady licking.  He licked my ass, my thighs, my pussy, all over me.  Barb was busy fingering herself, but she got up to check to see if this dog was even getting a hard-on.  He was, a little bit, so she decided to help him along. She fingered her pussy with her left hand and with her right hand she began manipulating his dick out of the sheath.  Then she got onto her knees and started to lick it, gently, not wanting to upset the big fella. Since neither of us knew how "receptive" to this the dog would be, she proceeded very carefully, so I wouldn't get the wrath of his teeth!  However, he seemed to be thoroughly enjoying her licking his dick and eventually, it was fully out of the sheath, and a glistening LONG red rod.  At this point, he jumped up on me, paws on my shoulders and nearly knocking the chair over.  I could not move for his weight was incredible.  So we sort of rolled up against a wall and now Barb was trying to help him get his cock into me. This dog's cock was huge, it may as well have belonged on a horse.  He was pumping frantically and panting hot breath in my face, when finally she got the tip to my opening and he started to pump himself into me.  GOD, what a feeling, and at the angle I was at, he couldn't even get it all the way in, but for the moment he was satisfied to try to fuck in this awkward position.  He pumped fast and furious and only about 1/2 his dick was getting into me, but at that point, it was incredible.  I wrapped my legs around his back and tried to angle my ass upwards more for deeper penetration and I succeeded in doing this for a short time, but it was breaking my neck and back, but the feeling in my pussy was so good that I endured the aches and pains of the angle I was in!

Barb finally managed to get him to jump off me long enough for me to turn around and present him with my backside as I then leaned on the chair.  It took only two seconds for him to remount me and Barb guided his massive dick into me and THIS time with one hard shove he was all the way in, up to his knot, I should say.  However, his cock was so long and thick, it filled me up!  I gasped both out of shock and pleasure!  He fucked hard! There is no other way to describe this. He was fucking me so hard that the chair was making marks in the wall and I can only imagine the racket we were making!  This hard and frantic fucking seemed to go on forever, I was caught between enjoying it and wishing it would stop!  At last, the hard thrusts turned into slower ones, as he was now working the rest of his dick into me, and the knot on this dog was about the size of a baseball! I kid you not.  Barb had become rather tired with *helping* Buck to fuck! She sat in the chair as I continued to let him pump me, slow, then fast, slow, slower... I thought he would stop... I think he was taking a minute to catch his breath and he began to fuck hard again!  While this cross between pleasure and pain was going on in my pussy, I began to lick Barb's  pussy which was in my face anyway.  She started to softly moan as I licked away... Buck was continuing to thrust me and was not about to stop until he could complete his "act" which meant he still had to get his knot into me!  As I licked Barb, Buck fucked me and this continued for a good 10 more minutes.

He never did achieve entrance into my tight pussy with his knot. He grew too tired and finally pulled out and sort of just laid down on the floor and began to lick himself! Poor guy! And poor me!! My pussy was still throbbing, but Barb got on her knees and started to suck his cock again and it got hard again, and with her hands she started to jack him off.  He stood up and his back hunched and he started humping her hands as her mouth worked the tip of his dick, her hands worked the rest and FINALLY he came, and what a puddle everywhere, even with her sucking and taking in what she could, Barb still had his cum spewing from her mouth.  However, at least we left the dog happy!