Chocolate Space Man

An elaborate sexual maneuver; simply defecate into a air tight bag and place it over your partners head allowing minimal room for them to breathe, commence coitus from the rear, either hole is fine. Then in the last few seconds before climax remove the bag swiftly from your partners head leaving them gasping for air and likely tightening the vaginal / rectal cavities ensuring maximum enjoyment.

"I paid this prostitute an extra $50 last night to do the chocolate space man, I forgot the pull the bag off her head though and now I don't know where to bury her"