Caught dad looking up wife's dress

[tinworm]

I just can't get it out of my head and keep thinking about the last time my dad was over , catching him looking up my wife's dress and the short but very explicit conversation between us that followed about that shortly afterwards , there are plenty of things I wanted to ask him and still do but didn't get the chance at the time before my wife came back downstairs from tucking our daughter into bed , I'm hoping the next time he comes over which will be soon as he pops in at least once or twice a week we might get a chance to talk a little more if we're left alone for a bit although not really sure how to bring up the topic of my wife and his last visit into the conversation , either work up to it or use the sledgehammer approach !!