That sounds like a flirty, body-themed way of speaking rather than a literal astrology code. In astrology, Pisces is associated with the feet, and Cancer is associated with the chest and body fluids, not claws or fins.

What it likely means

  • “Claws ” usually points to a crab image for Cancer, so in casual flirting it can mean his hands rather than anything literal.
  • “Fins ” fits Pisces imagery, and because Pisces is linked with the feet , it could be a playful way of saying her feet.
  • The phrase is probably just teasing, suggestive language built from zodiac symbols rather than a standard astrological meaning.

Simple read

If you want the plain-English version: she may be asking him to use his hands to tickle her feet in a cute, sexual, or playful way.

Important nuance

Astrology language is flexible, so people use sign symbols creatively in messages and jokes. There is no official rule that “claws” must mean hands or that “fins” must mean feet, but that mapping is the most likely one here.