marriage - sex when you're fat and when you're thin

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I thank God for my husband. We've had a great sex life no matter what weight I've been. I've told him many times I thank God he loved me just as much when I was 283 as when I was 145. I couldn't lose weight if he hadn't. I have a friend whose husband wouldn't make love to her when she got fat unless the lights were out. She can't lose the weight. Gee I wonder why? So sad.
However, as I get thinner we're discovering new positions. I didn't expect this particular benefit. It's a great motivator actually. Who knew losing weight could improve your marriage that way?!?