Well, yeah...but oh. [Kay shrugs and chuckles.] Oh, right. This is your first time in a merman's body. See, merpeople have stronger, more flexible spines than humans. Obviously we'd have to if we have to live with this instead of legs, right? [She flicks her tail this way and that.

...never mind that technically, Kay can live half her life with a tail, and the other half with legs.]