All Zafika gets to do to respond to Matilda is open their mouth to say something, when she latches onto the nearest spike before letting go of their hand. They chuckle a little bit at it, before they grab onto another spike. "As you can tell, not too gross. Then again, I'm used to plenty of gross things, like yesterday's blood gloop. But, well, it feels mostly like dry sea urchin spikes."