After years of public mockery over his penchant for blonde models aged 25 and under, Leonardo DiCaprio is showing growth by dating a – drum roll – 27 year old!Last week, the actor was seen getting cosy with supermodel Gigi Hadid, months after they were first linked.And insiders say the fashionista is dead-set on the Titanic star, telling friends she wants to have his baby.“Gigi wants to make sure it lasts,” says an insider close to the star, who is mum to two-year-old daughter Khai from her relationship with singer Zayn Malik.“She’s had plenty of options since she broke up with Zayn, but it wasn’t until Leo came along that Gigi felt even vaguely tempted to date. It’s important to her that a guy isn’t intimidated by her fame and has his own level of success, which Leo has.