Um, yep, me too.
Sheesh, I have to admit: it happened to me too. It was two distinct feelings, one while going up the rope, and the other while sliding down. Going up, I think the other posters' comments about abdominal muscles applied: you're tensing up muscles in your abs, hips, and legs that are in some way tied to the process of sexual tension/release. Add to that a possibility of some friction from the rope and there you have it: that "funny feeling" from Wayne's World. I can see girls getting this to a lesser extent than guys (I am a guy).
On the way down, it was pure friction which happened to catch me in just the right position. The question is, does *this* part happen to females? Their nether regions, shall we say, are a bit more protected than guys', so I would think what might look like very direct rope-to-erogenous zone contact might be nothing at all.
"I've run out of beans!"
Feetla
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