Sử dụng xà phòng một cách khôn ngoan

It is a particularly erotic experience if your partner rubs herself against your groin

while guiding your penis along her vagina.

Massaging your penis only increases your desire for her groin still further.

The slippery foam allows your partner to spoil you and slide along your whole body.

In the moisture of the warm tub, it is extremely erotic to rub each other repeatedly with the foam, experiencing your bodies fully.