that increase the lubrication of genitals making the penetration easier and without pain;
that incresea the gliding of the condom;
that soften and moisturize the skin and mucosa and protects them;
that are necessary for deep intimate massages, for sex toys use and anal sex.
Also lubricants help to remove women's dryness and the high sensitivity of women vagina.
There are oil and water based lubricants. http://www.desiresecrets.com/?department...