Saliva is not a lubricant, do not use it during sexual intercourse [TheWhistler] When it comes to sexual intimacy, the last thing you want is unexpected problems. Lubricants (lube) make sex smoother, ...
When you're moving from foreplay to the penetration portion of sex, a little bit of friction is a welcome addition. But too much of it can easily turn 'ooh' into 'ouch,' leaving that area dry and ...