A bit of context. This was a very significant boyfriend who I nearly married. Gorgeous but shy, intelligent and kind. There was a very strong sexual chemistry bond between us and I remember him very fondly. We haven't seen each other or been in touch for nearly 15 years, but I am travelling for work to the country and city where he lives now and are meeting up for a drink.
15 years have passed. I think I am in good nick for my age (early 40s) but obviously, I do not look 25 any longer, even if that's exactly what I think when I've had too much vino. Since I've know I was going to see him, I've been having these intensely erotic distracting thoughts and I just need to get a grip. But I digress.
Ladies, this is your brief. Make me feel gorgeous BUT as if I haven't tried at all. As if I had just woken up, grabbed the first thing that I saw in the wardrobe and put it on. I want to look effortless chic and be able to chat away with him, nonchalantly, knowing he thinks I look stunning. I should add at this stage that, despite the impression I might have given above, I am not after any inappropriate physical contact with him although one wonders incessantly what it would be like. I just want him to look at me and hate himself for letting me go. 
So, what do I wear? I am a size 12, 5'6'', brunette with brown eyes. Thanks!