"Kourtney's planning to invite all the hottest young guys in Hollywood – even if she's dated them before," says a source.
As RadarOnline.com readers know, Kourtney likes them young, having recently been spotted leaving Nobu in Malibu with 26-year-old boy toy David Dee Duron.
The reality star — who has Mason, 9, Penelope, 6, and Reign, 4, with her former partner Scott Disick — turns the big 4-0 on April 18.
"Kourtney insists turning 40 is no big deal for her, but there's definitely an element of her wanting to feel young and lusted after," the source added.
As the oldest Kardashian kid, and the first to reach the landmark 40th birthday, Kourtney is increasingly desperate to hold onto her youth, in whatever form that takes — and that especially means throwing a raging party suited for a wild child half her age.
"She's asked her mom to throw her the sexiest event she's ever put together – think artistic but erotic dancers, topless waiters (both guys and girls), and enough champagne to sink a ship," the insider revealed.
"This will be Kourtney's message to the world – she's 40 and fabulous."
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