On my post about little and big orgasms, a couple of women said they'd only had little ones and asked me how to do the big ones.
Well, step one is to be born in suburban Massachusetts in November to Ashkenazi Jewish parents... I don't know, I've always been like this, I never had to try, it's probably genetic or something.
That said, here are some things that seem to help me have big orgasms on my own, so I present them for your enrichment:
-A lot of times the big O is the second one. I have a little orgasm, rest a few minutes, then go again and have a big one.
-Having something nice and filling in my vagina and/or butt helps a lot.
-Fantasizing, as opposed to porn or just "relaxing," helps a lot. And not gauzy-toned dainty little "my secret garden" fantasies, I'm talking rough wet brutal assfucking fantasies. Might just be me.
-Having phone sex helps a lot. For some fascinating power-of-the-mind reason, good phone sex gives me the same physical reactions as actually being touched by someone else.
-Hold off on the little O's; stop when you feel them coming, take a few seconds, and then restart after you've cooled down.
-Try and get somewhere with enough privacy that you can make noise and squirm around and you won't have to worry what anyone else thinks. I can't even have little O's if I'm trying to hide while I masturbate.
-Accept that it's going to be completely embarrassing, and embrace it. You're going to make icky noises and move in icky ways and emit icky fluids. If you try to suppress any of the ickiness you're going to miss out on the big O.
-Squirting is not mandatory. I've never squirted (although I do produce quite a lot of lady-juice, just not forcefully) and I have big ol' orgasms.
-When all else fails, vaginal intercourse with someone you like will just about always give you a big O.
...Might just be me.