Have a female do a hand stand, or so that her vagina faces up. then you pour liquid into the vagina. then the male or female procedes to drink said liquid from the vagina. like a tea cup
When doing your best gal from behind; have her reach under you and grab hold of your yam bag....but not to toight.
Bruce: "yeah viki, lets do it doggy style"
Viki: "sure"
Bruce "now reach back for that ball bag baby"
Viki "you mean you want a tea cup"
Bruce "oh yeah, now shake my dice till I screem yatzee"