They do take some practise! I’d take some time off strict denial to just play around with them, but I find a build up to it, and then stopping, a couple of times when anything more would take you over the edge, and then the third or fourth time just push yourself over and stop all stimulation, will make it more intense.
Really, just this week a girl who thought she had no success with ruined orgasms ended up in tears after I gave her a couple of those. It can be pretty brutal, I warn you now.
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