Hiding s** marks from wife

I've been seeing this girl at work who is a kinky b****. She loves to dominate and has recently got a whip, she has whipped my bum but now she has whipped my d*** and chest and I'm trying so hard to hide it from my wife! The kinky girl also plays with my ass when we f*** so now I can't c** unless I've got a finger or d**** up my ass, not sure what I'm going to do when my wife next wants s**! Any tips?