It looks like Kendall Jenner is trying to keep her new romance with Justin Bieber on the down low. Rumor has it that the rumored pair has been hooking up for quite some time now, as they are trying to keep their tryst a secret.

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According to Hollywood Life on Friday, the two celebrity stars don't want to go public with their alleged relationship.

A source told the site, "They don't want to be exclusive and get all that insane attention. They just want to have fun and do their thing without people knowing or asking questions..."

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The insider added, ""Kendall doesn't want her mom trying to put him on the show and make some relationship show like she did in the past. She already scared Harry Styles off that way, she doesn't need it to happen again."

If that's not enough, friends of the pair apparently say that Kendall and Justin are quiet serious about each other - even though they're taking things very easy before diving into anything serious as far as relationships go.

The source explained, "When Kendall and Justin are together, they flirt so hard core. They love telling people they're just friends, but they're playing with everyone - there is more to it. They've hooked up in the past and there's still something there. They just like to keep it totally secret, but a lot of people know there is something there. They aren't fooling everyone."

So far, neither Kendall nor Justin have made any comments on the report.