This story involves CFNM, exhibitionism, puppy play, anal and gay male sex. If you are offended by any of these, don't read it!
I am fuckpuppy - a twenty-something year old human male who is happier being his mistress's dog. I am six feet long when stretched out, and have a lean build, with a broad chest and flat stomach. My arms, legs and butt are toned with years of working out. My dick is uncircumcised, and six inches long when erect. My mistress keeps my dick, balls and butt waxed, so they are always clean and hairless for her use.
My Mistress is called Merry. She is tall and slim, with grey eyes and a ready smile. She is kind but firm. When she allows me, I love to play with her. To put my face in her crotch and sniff and lick her clit and cunt and asshole. To hump her leg. And to be fucked by her strapon.
My mistress jerks me several times a day, stopping just before I cum. As a result I am in a permanent state of arousal. Every time I am jerked, I hope this is the time I get to spray the floor with my semen. More often than not, she stops short.
I was lying contentedly at my Mistress's feet one day, my legs spread wide as I'd been taught. Merry had her feet on me - one on my chest, the other resting lightly on my penis, rolling it back and forth. I was leaking precum like a faucet, hoping I would be allowed to cum, when she spoke up.
"I am going to take you to the doctor for a well-visit, fuckpuppy"
I paid attention. Mistress had never taken me to the doctor. What was this about?