Photo: @ Instagram/ Jessica Simpson

Curves generosissime and costumino animal: for his 39th birthday, Jessica Simpson couldn't ask for better!

The mother of three children, has called a gathering of her group of friends-trust to a pool party birthday at the glamour and Instagram has given us a couple of shots of the actress beaming.

“39 years with my girls,” he then commented on the social.

Photo: @ Instagram/ Jessica Simpson

A few hours before, Jess had used Instagram to announce to fans the big news:

“It is a great time to look to give you this exciting news... The February 4, will be released my first book, published by Harper Collins. I worked hard, and I opened my heart in a way I never did and now I can't wait to make it known to the whole world.”

According to the description on the official website of the publisher, Jessica has worked on a book of memoirs in which he recounted aspects of his life lived largely in the spotlight.