Hell no.
Webbed hands? Eurgh. The whole thing smacks a bit too much of furry for me. Plus the whole pegging thing (kappa tend to search for a mythical ball they believe to be located in the anus of humans. look it up, it's an old japanese myth, no kidding), ew.
But well, I fear no freakin' kappa. Reverse the roles of fingerer and fingered and I'd hit that, I think. If I'm correct they get all weak once their head-water-thingy is spilled, so she'd be in for some raep.