If the 'Rogue Diamond' version of Suri Polomare was in a situation where she's immobile and the tip of a feather, tentacle, vine, or finger wiggled into her navel, I imagine the following happening:

Being her most ticklish spot aside from the rest of her exposed belly, the sexy, sadistic slaver's eyes would widen, and her pupils would shrink while going, "Oh no, no, no". Then truly intense, hysterical laughter would erupt from her throat as tears streak down her face and she begs and pleads for the tickler to stop along with threatening him/her. But if the tickling gets even more intense, she won't be able to form any words, just endless guffaws.

Original Meme: https://www.deviantart.com/tigresslanzhu/art/Belly-Button-Scenario-915982951

Suri Polomare in general (C) Hasbro and DHX Media