Wrap saran wrap around your lower body like its a pair of boxer shorts. Wear it for 24 hours while eating foods that make you repetitively fart into said wrap. after the wrap is at the point where it can get no stinkier, take it off and slap your girlfriend in the face with it during sex.
Colleen broke up with me last night because I pulled the Saran wrap trap on her. I miss her already.