classic look on her face....
"OMG I can't believe I lost this bet, and am about get a bare bottom spanking out here on a public country road like this!!! someone could come around and see us any second!! .... is that a group of male bicyclists coming around the corner right now???? my big white MILF bare ass is shamelessly mooning away at them... I am SOOOOO embarrassed!!!! nooooooooooooooooooooooooooooo this isnt happening!!!!!!!!!!!!" of course, the bikers are going to stop and witness her spanking!