Hubby pretty much wants to go at it every day. Most times, I am game but sometimes I am so tired I just let him have it without enthusiasm. He hates that because he always wants me to be excited and an active participant. But who has the strength for all of that? I work 8 hours a day, travel practically 2 hours to get home, to start dinner right away, iron the next day's outfit and clean up the kitchen and after the dog. I don't always have that energy in me. How he does, I'll never know but men never cease to amaze me when it comes to sex. My husband can be dying with the worst flu and he will still want to have sex.