since michael 's birth well , actually , since rosemary had moved in with them after cancer number one celeste and dave had slipped into the type of predictable married-couple routine joked about nonstop on sitcoms , usually too weary or without enough privacy to do much more than a few perfunctory minutes of foreplay , a few oral , before moving on to the main event , which , over the years , seemed less like a main event and more like something to pass the time between the weather report and leno .