As far as I am concerned the more, the better. I typically spend a lot of time talking to the hubby/cuck before I even meet the wife and I tell him that I believe in constant foreplay. I think constant but not gratuitous touching and kissing in front of the cuck is very important. As all the wives I date are older and sometimes are unsure of their desirability it is important to constantly reiterate how hot I think she is and how much I want her and as love blossoms how smitten I am by her. So, lots of deep passionate kissing. This has several benefits in making her feel desirable and wanting more sex, investing more effort in her appearance and hotness, and it is very hot for the cuck to see her transformation into a very passionate sexual being. It also deepens the passion between the wife and I and affirms that I am the her Man who has made this transformation happen.