I love how much weight my mom has gained (long)

I used to weigh more than my mom, but 2 years ago, she suddenly started gaining a lot of weight. It was very surprising to me because I had never seen such a drastic change from a relative. She didn't have any health problems, so I guess it was just being too comfortable with my dad after retiring. I'm happy but she isn't. She's now bigger than me and my sister, but she's still much more attractive than both of us. I don't really care about weight, I'm happy with how everything is. I'm very proud of her (even though she doesn't feel that way herself).