I use this twice. Once with a woman named Nadia and the other with Vanessa. It's safe and reliable, the women are ticklish but you shouldn't expect them to be off the wall ticklish because they are agreeing to let men play with their feet, naturally you should assume they aren't going to be the most ticklish women. I'd say they are at the most less ticklish than you'd expect the average woman to be.