Love-starved BRITNEY SPEARS has developed a gloopy “teen-age” crush on KARDASHIAN baby dada SCOTT DISICK, The ENQUIRER has learned.

The troubled pop star fell hard for the charms of Kourtney K’s 29-year-old boyfriend after being introduced by former “X Factor” colleague and Kardashian sis Khloe late last year.

Since then, Spears has become “obsessed” with the reality TV hunk, revealed an insider.

“Britney first became attracted to Scott when he started appearing on ‘Keeping Up with the Kardashians,’ but she says he’s ten times cuter in person.”

Although she realizes Scott is not available, the 31-year-old performer still fantasizes about him.

Like a young teenybopper, she’s reportedly plastered pictures of him all over her bedroom walls and watches clips of him on YouTube.

 “It would be a recipe for disaster if she ever ended up with a guy like that,” said the source. “Britney needs a stable influence, not a party-hearty womanizer.”

And her crush doesn’t sit well with Kourtney K.

“Kourtney is absolutely livid,” said the source. “She doesn’t trust Scott to begin with and has forbidden him from going anywhere near Britney.”

For ALL the DETAILS – it’s in the latest ENQUIRER – on sale  now.