I agree with lucky, men love a confident woman, so be confident in yourself, so you have a scar- hey you gave your sister a kidney! And so your tummy doesn't look the same- but I am guessing it looks a LOT better than it did 37 pounds ago! Be happy with your body, he loves it, accept it and love yourself also
I'm 212 lbs and I love my body, if I sit there and worry about my body I'll never enjoy sex!
Oh and there is this stuff called Mederma, I've been using it on a burn scar that I have and I'm totally impressed by it. My sister used it for a scar on her face and recommended it to me, I'm shocked by the change in the scar over the course of a few weeks! There is a coupon for $2 off right now on their site at merderma.com also!