Brooke Shields' new memoir, "Brooke Shields Is Not Allowed To Get Old," is out now, and the 59-year-old model and author shares it all, opening up about her first marriage to tennis pro - Andre Agassi.

Brooke Shields has told how she's "glad" she never had a baby with ex-husband, Andre Agassi. The Blue Lagoon star confessed that she and former husband wouldn't have made good parents together. Writing in her memoir,

Brooke Shields writes in her memoir, 'Brooke Shields Is Not Allowed to Get Old,' that she's "glad" she never had kids with Andre Agassi. Read why, here.

Taylor Hill/Getty Images Brooke Shields never had a baby with her ex-husband, Andre Agassi - a decision she says turned out to be a blessing in disguise. "I'm glad I never got pregnant with my first husband because it would have been a disaster,