when mine sees the wood, she says, 'somebody needs to go ride that thing' and she follows me down the hall. At 64 (almost 65) when the mast is up, we set sail! We've always had an agreement that if we wake in the night and the thought is in our head, we roll the other over and get to it. You only live once and we both want to have bomped as much as we can and enjoy it....
Other people don't matter, flexing doesn't matter, if you have a good thing, the two of you know it and that is its own reward. I know people get bored of the same partner, all I can say is, I don't.