I considered Aunt Cathy for a moment and looked at her top to bottom. She caught my leering and she blushed slightly. "Yes. I suppose I'd better put some clothes on now that I'm more... um... human."
"You don't have to." I suggested, with just a little smirk.
Cathy stared at me for a moment with wide eyes and then averted her gaze, blushing deep red. "...James!" She giggled nervously. "Sara... she... well, she told me you were... furry. But... but I'm your auntie. That would be... wrong. Even if I do hate your mother, it's not proper."
"I kind of like your new body." I continued, pushing harder. "You're a real living anthro."
She gulped, and stood up. Almost backing away from me towards the stairs. "Oh, James. I'm an old woman. I'm not even attractive like the animals girls in your lovely pictures."
"Besides..." I really pushed now, my voice taking a lusty edge. "I liked you as just a horse too."
She stopped in her tracks and almost smiled in pleasant shock. "You... you did?"
"Of course!" I advanced on her. I wasn't lying, really. I was a fur, after all. And I could do whatever I wanted to boot. Why the hell not?
Cathy stepped nervously on her hooves. "Did you... find me attractive as a horse?"
"An intelligent horse." I corrected, standing inches away from my unicorn aunt. "A sexy horse. I used to jerk off thinking about fucking you."
Cathy gulped and blushed deeper. "Nobody... has ever said something that nice to me. I'm usually a freak... I... I didn't think anybody was turned on by me."
"I love animals." I said lustfully. "You know that, right?"
Now Cathy had a big shit eating grin. "You're making me horny, James! Stop it." She smiled and flashed me her ass. "I'm... I like knowing that somebody thinks of me that way. Thanks for that, but really, it's still not proper."
I twisted the knife. "Fuck proper. I want you."
Cathy turned around and grinned her own lusty smile now. "Maybe I'll let you have me, then."
I blushed, wondering if I had really just seduced my own aunt. "Oh yes?"
"Yes." Cathy said lustfully, turning back and coming close, putting her hands on my shoulders. "I'll show you what a real woman can do. Let you run your fingers through my nice soft fur."
I was actually getting excited. I had never seen THIS side of the obnoxious woman before. "And about your body..."
"Yes?" Cathy crept in closer, brushing her nose against my ear.
"I can change it however you want. That's how you got to be like this in the first place."
Her eyes widened and she burst out laughing. "I'd say bullshit, but I knew I couldn't just change from a horse to a unicorn woman for no reason! Well, show me! Do something!"
"What would you like?" I asked, taking her around the waist in my arms and pulling her close. "I can do anything."
"Anything? God! Hmmm..." She considered.