"Sure I do! I have feathers," She puffs up the feathers on her chest at this, "wings," She flaps them, just in case he hadn't noticed, "and a beak!" She opens and closes her (fanged) beak a few times. "I look just like a chicken.
And not a duck.
And you're a..." She sits down and cants her head, slowly rotating it to an unnatural angle before standing back up and circling Sollux.

"...are you a horsey?"