er partner. Sometimes called a spit roast.[33]The 369 position is where two people engage in oral sex in the 69 position while a third person positions himself to penetrate one of the others; usually a man engaging in sex doggie-style with the woman on top in the 69 position.[34]A man has vaginal or anal sex with one partner, while himself being anally penetrated by another (possibly with a strap-on dildo).Three partners lie or stand in parallel, with one between the other two. Sometimes called a sandwich. This term may specifically refer to the double penetration of a woman, with one penis in her anus, and the other in her vagina or of a male, with two penises in his anus.Two participants have vaginal/anal sex with each other, and one/both perform oral sex on a third.Three people perform oral/vaginal/anal sex on one another simultaneously, commonly called a daisy chain.The slang term lucky Pierre is sometimes used in reference to the person playing the middle role in a threesome