I would just higher 2 really hot escorts and have them waiting in his bed naked when he gets home.I cant see how he could refuse.I think the only resistance your husband would have is you with other guys.But he could get used to it.Once hes at work with those 2 ladies from before join in with the fun.That way he will be more comfortable with more than one person.I dont know about your hubby but its always been a dream of mine to have mfff lol