I figure if they minded how I looked nekked we wouldn't have gotten to the sexing stage, and I have the selfish need to look at the person I'm with. Thinking about how I look doesn't really occur to me at these times (thank god!)but seeing my sig. other is really important to me.
It doesn't really matter, but I'd prefer candle light or something, so they aren't all the way on, but I can still see my partner.
But, you can't really turn the sun off with day sex, so that's why it doesn't really matter.