Hiding ** marks from wife

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