I always thought it was a myth, but I bought a pair of these yesterday and immediately put them to use with my fiancee. To the surprise and delight of both of us, I achieved orgasm without anything touching me below the waist. Nipple play is always a huge turn-on for me, and these just pushed it up another notch. For reference, I have smaller nipples and they are very sensitive. It took some time to dial these in to the right tension so that they stayed on but weren't painful. Once we got that straightened out, these were fantastic!