Where are you most ticklish?

I am quite ticklish and get tickled often. When I want to tickle them back, it often turns out that they are not ticklish. Maybe I'm overlooking certain places, so that's why I'm asking where you are most ticklish. Then maybe I can finally get my payback.

Neck
Armpits
Ribs / Sides
Belly
Thighs / Knees
Feet
A body part I didn't mention? Let me know below!
Select gender and age to cast your vote:
Where are you most ticklish?
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