The Double Dip

My wife's boss is insatiable.  And, while, at first, he was not sure about having her sissy husband participate in their sex, once he agreed to let me fluff him the first time, and he found out what a good cocksucker I was, he's taken my participation to a new level.  He calls this the "Double Dip," where he fucks my wife, then sticks it in my mouth.  Fucks my wife.  Then back in my mouth.  And he can go on for over an hour before he cums, in her pussy, and then on my face.