You're a little taken aback by the question. It's not the kind of question you've really dedicated a lot of thought to, in fact you're fairly certain that the last time you were asked that question you were still carrying your lunches in a Scooby Doo lunch box. Odd question that it is, you shrug your shoulders and answer.
"Dog, I guess." you say, noncommittally.
"Hmmm...are you sure?" she asks, scratching her chin as she raises her eyebrow quizzically "This is a pretty important decision after all.
"Yeah, dogs." you say with a bit of a laugh at the idea that anything particularly important could hinge on such a mundane question.
"Good enough for me, baby. Follow me." she says, clasping your wrist with both of her hands and pulling you into a room. The lights are time, and the air is warm and somewhat humid. She guides you the bed in the center and pushes you into a seated position.
"Stay." she says to you with a wink and a smile "I'll be right out." With that she disappears behind a door, presumably leading to a bathroom. You wait patiently for her to return, taking in the perfumed air and sliding you hands across the silk sheets of the bed. After some time music begins playing over a loudspeaker that you hadn't noticed. She emerges from the the room. Her long brown hair now teased slightly to make it look wild and free. Atop that brown hair, though, is a pair of triangular shaped ears that flop over at the ends. She turns around as she begins dancing to the music, revealing a slightly curved bushy tail. You laugh and applaud.
"Very nice." you say, now that the reason behind her earlier question has been revealed. You admit to yourself that whatever prosthetic she's using are quite convincing. You lean back and watch her dance sensuously to the music, her erotic movements arousing you further. Through the dim light you almost swear that you can see the tail wagging slightly and the ears twitching. You silently praise the skill with which these apparatus' were made.
The woman smiles and approaches you with a sultry and almost predatory grin on her face. She unbuttons your shirt and once done with that proceeds to unbuckle your belt. You smirk and raise one eyebrow in an attempt to look sensual yourself. You feel somewhat embarrassed when you see her bite her lip slightly as though to keep from laughing. Still she doesn't let you dwell on it. She helps you off with your undershirt while you kick off your shoes.
"So..." she says "...you're ready for me?" she asks coyly. You nod in reply and begin to speak, but she places her finger on your lips and shushes you. She pulls you into a kiss, her tongue expertly playing with yours as her hands tug your pants further down your legs. She pushes your shoulders down onto the bed and tugs them off completely.
"Good boy." she says. It occurs to you that she's been using odd language "stay" "good boy" and all that, which you assume is all part of the experience. Odd as it is, you find yourself kind of enjoying it, especially when she pulls away from you and moves to another part of the enormous bed. She positions herself so that she's on her knees with her arms and head lowered. She looks at you with a smile.
"Come." she says. You smile and are about to oblige her when you notice that the tail has no straps to hold it in place. Rather it's growing directly from her tailbone. It wags back and forth as would a genuine tail. The inevitable conclusion reaches you as you grab the sides of her derriere. Somehow she's grown an actual tail. With your manhood inches away from her rather wet vagina you're suddenly faced with a choice you have to make.