Ashlee Simpson

Ashlee Simpson says she is "completely disgusted" by the scrutiny over her sister Jessica's new curves.

"I am completely disgusted by the headlines concerning my sister's weight. A week after the inauguration and with such a feeling of hope in the air for our country, I find it completely embarrassing and belittling to all women to read about a woman's weight or figure as a headline on Fox News," Simpson writes on her blog under an entry titled "Since when did a woman's weight become newsworthy..."

Jessica flaunted her new body at a concert over the weekend, wearing a figure-hugging black tank top and high-waist jeans. A flurry of blog posts followed.

"All women come in different shapes, sizes, and forms and just because you're a celebrity, there shouldn't be a different standard," Ashlee Simpson writes, adding that she "seriously doubt[s]" people would make the same remarks to a wife, daughter, mother, grandmother or a friend.

"How can we expect teenage girls to love and respect themselves in an environment where we criticize a size 2 figure?" she says. "Now can we focus on the things that really matter."