While you and your significant other are making love, and she/He proceedes to give you a glow job with his anaus directly above your chest giving you a perfect view for the "show". Then right before you orgasm your partner gloriously defecates all over your face and chest.
Similar to the Alaskan Flounder Basket act, in this case a warm object such as a wet towel or a heating pad is put inside an un-douched vagina and then is removed and oral debaucheries are performed using said object.