Definitely a body image thing, assuming this is someone who refuses to have sex with the lights on like this guy I used to know’s wife. No lights, under the covers, every time. I suggested candlelight, and she actually blew the candles out before getting naked. And she was thin and pretty!
Me, I’m overweight and have stretch marks on my hips and probably don’t look that great naked. But I figure if you’ve seen me naked and still want to do it to me, then let’s go. I even did it reverse cowgirl once with a big zit on my ass. Totally not cool that the guy chose to share that information with a mutual friend, but whatever.
I find sex to be pretty ridiculous in general and try not to get too hung up on anything.