With coïtus à la florentine the girl draws the skin of the penis tight, towards the base of the penis, and holds it there. This makes intercourse more stimulating for the guy.
You have to keep the skin tight while you move the penis in and out. This is only possible in positions where there is space between the girl’s and the guy’s body, as in the amazon position.
This technique can only be used when you don’t use a condom, for instance if you both know you don’t have a STD and are using oral contraceptives.
Another way to make it more exciting for the guy is to put your index finger and thumb as a ring around the base of his penis, as a kind of extended vagina. That way his penis is not only stimulated by your vagina, but also by your fingers. Put pressure on the underside of his penis, stimulating his frenulum. This technique works well when your lover’s penis is thin and/or your vagina is wide.
Both techniques must not be used if your lover comes (too) quickly, for then you’re in need of techniques that postpone orgasm.