Advice for men.

We introduce a member slowly, first at 1/3 of the depth of the vagina. Many girls from the slow introduction of a member are very excited. We make several frictions at this depth, and then enter to the full depth (but not quickly!). The beginning of sexual intercourse - the vagina is not yet so elastic, and with a quick and deep insertion, a woman can be hurt. Having been a little at a depth, we again pull the penis up to 1/3 of the depth and so tease the girl a little.