Wartime romance

What did (or do) your parents get up to when they were in the first flush of romance? For most of us I think it's something that we'd rather not give too much thought to, isn't it?
Reading your parents' love letters must be quite an experience, especially when they were written in wartime. Putting them on the web for everyone to see is really, really brave.
Let me back track a little. Last night I was using a page from Thursday's copy of The Times when I was doing some painting. Reading as I worked I came across a thorough startle. 
The heading said 'Ripping wartime romance with a happy ending', but a quote was picked out in bold and it was that which caught my eye. It said: "Darling one, it's just as well you aren't here as you would probably have to spank me hard — but what a heavenly spanking!"
It was a story about a daughter who had put all her mum and dad's wartime letters on a site called With Love from Graz. He was a soldier, she was a nurse and they served in different places, so there were regular letters from one to the other. 
The story is here, but The Times has a paywall. But it turns out that it started out closer to home to me in the South Wales Echo, which you can read for free - it's here.
The daughter says the letters "can be a bit like reading Shades of Grey..." Which made me think about how I'd feel if it were my parents - and about what my kids would discover about me if they ever stumbled on some of the stuff I've written.
I do like the site, but looking around I can't see much more in the way of grey shades. You can read about the "heavenly spanking" in a letter dated May 12, 1946.
I'm not sure why Katie thought she deserved the hard spanking. Possibly it was just because she was beging a bit negative and letting her stiff upper lip sag a little.