with my wife of 47 and her younger bull of 28 it is kind of a deal: he trades his stamina and young thick cock against her naughtiness which he does not get from the younger girls at his age. So my wife has been doing things to please him and keep him which she would not have done earlier or for me alone. now she is dressing up with garter belt stockings and heels or boots, she gives away her ass, she rims him and fingers his ass while blowing him, she let him bring a friend for spitroast and a dvp recently. and since it is fairly stable since half a year he can go bareback. these things keep her in favor of the fit but somewhat boring younger girls.