A couple of conversations I've had plus a post from the forum made me think that for some people, losing weight makes them more susceptible to rib and side tickling.
Firstly, I've had two different women tell me that being tickled hard on the sides doesn't tickle but is painful because as they put it "I'm fat".
Secondly, I recall someone on the forum saying that she became more ticklish after she lost weight.
And thirdly one of my close female friends who I had unsuccessfully tried tickling on her sides several times lost about 30 pounds. She was never overweight, I always thought she looked great, but she became very thin. I had pretty much given up trying to get her, until one time I just playfully squeezed her side. She jumped and said something about how losing the weight made her become ticklish.
Has anyone else had a similar experience? Or lost weight and realized your sides and ribs had become more ticklish?