A penis extender won't help women orgasm because the clitoris, the primary source of female pleasure, is external. Direct clitoral stimulation, not penile size, is what actually leads to orgasm.
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Let's talk about penis extenders. Somebody wrote to me and said, will using a penis extender help a woman to come? First, I had to look up what is a penis extender, and it's one of those kind of silicone sleeves. The end of it looks like a penis, and you stick it on the end of a dick, and basically it makes a guy larger. I couldn't understand though, why would having a larger dick help a woman to come? After all, the clitoris is not buried deep inside the vagina. Sure, there it— the stems of it do extend into the vagina, but having a bigger cock isn't going to help with that. What will help with that, of course, is just rubbing on that old damn thing.