The first thing you notice as you start to come around is that someone is petting and talking quietly to you. You recognize the voice as your brother Ken's. The second thing you notice is the dull ache just below your penis.
You jump quickly to your feet, forgetting for a second that you currently have twice as many as you are used to, this sending you off balance and falling back to the ground.
You open your eyes and see Ken is now laughing at your clumsiness. Being more cautious you get up onto all four of your feet then turn your head to try and confirm what you fear has happened.
Looking between your legs you see the sheath that contains your penis and behind that a small limp flap of skin: your empty scrotum. You feel like crying or yelling or doing anything, anything to get back what had been taken from you; but, the only sound you manage to make was a low whine.
"Aw don't be like that Scot," your brother said patting your hind-quarters. "It's for the best you'll see. Come on the nurse said I could take you home as soon as you woke up, lets go."
At first you follow along with your head down and your tail between your legs in a futile attempt to hide from the world what had been done to you; but, as you enter the park on your way home a glimmer of hope surfaces within you: This isn't really your body, it's basically Scots body so when you take the suit off chances are you will be a whole man again. Right?
Spirits raised and with a new eagerness to get home you begin pulling on your lease trying to get Ken to move faster but he just pulls back saying "Nope, sorry boy the doctor said no vigorous activity for a couple of days. Gotta give those stitches time to heal."
You want to say something along the lines of 'But when I get home I won't need the stitches because I'll be your brother again and not some neutered dog.' but you decide that at this point you might as keep playing the part of your dog after all you wouldn't want Ken to know that he had just paid some vet to castrate his own brother.
By the time that you had entered your building, waited for the elevator and watched Ken fumble in his pocket for his key to your apartment you had thoroughly convinced yourself that all you would have to do was remove the suit and all would be well. Finally Ken managed to open the door and let you in.
He stayed just long enough to remove your leash and hang it on it's hook by the door. Giving you one last look you hear him say "Boy will my brother be surprised when he sees what I've done for him for Christmas," as he closed the door.