I would like to know how you girls hold your orgasm and last longer...
Why last longer?? Just have it.
Reason being, the female of the species can carry on and orgasm again many times without much trouble.
That's my view anyway.
I mean unless you are trying to specifically coincide an orgasm with your partner. Then I guess you'd have to lay off slightly on what ever is getting you to the point of release, just like men it's a matter of lessening the direct stimulation I guess, change position, change activity.
I clench my entire body from the outside in.
Not only does this help me from letting go of my orgasm too quickly (I happen to love that feeling of being on the edge for as long as possible), but it gives an extra squeeze for my man when he's inside of me.
When I want to hold off an orgasam I acually back off the stimulation for a moment, then build again, my whole body ends up tense - by repeating this as often as possible the orgasam that follows is totally amazing, plus its fun being on the edge for so long!