The Old Man and My Wife's Tummy

My beautiful wife and I moved into a new house, with a big back garden. It was summer time and my wife would usually be wearing tummy-showing tops; as she knew I had a tummy-fetish and she too enjoyed this sexy kink.
A few days later we met our neighbour, Norman, an elderly man that lived alone; we were talking over the small dividing fence and as usual my wife was showing her tummy and navel. I kept noticing how his eyes would focus upon her exposed tummy, clearly enjoying the sight of her bare tummy and deep navel. And a few weeks later, he would have his hands on her tummy!