Jessica Simpson has spoken about how excited she is for her pregnant younger sister Ashlee, and what type of mother she will be.

The younger Simpson sibling married Fall Out Boy’s Pete Wentz last month and announced they are expecting a baby in six months time.

Speaking to People, wannabe country singer Jessica gushed about her sister’s future as a mother. "She'll be amazing, absolutely amazing," she admitted.

She adds: "They're just the cutest couple in the world. They are adorable. Anybody would wish to be them and you can only wish them well. Just being around them inspires love and everything I sing about."