Gigi Hadid and Leonardo DiCaprio's romance might be heating up if the supermodel's sister Bella gave her a warning.

According to Heat UK, Bella isn't thrilled about their reported romance, and she had a heart-to-heart with the blonde beauty after learning that she had been hanging out with the "Catch Me If You Can" actor.

During their talk, Bella allegedly did not mince words.

The rumor, in Bella's opinion, couldn't be more "ill-suited," according to the insider who talked to the magazine.

This is because she considers Leo to be a "playboy," but Gigi is a "sweet girl."

"Bella believes Gigi is too good for Leo, and the way he jumped to Gigi without regard for his prior lover gives Bella goosebumps."

According to the source, Bella Hadid wants her sister to remember that she also has a baby to care for.

Gigi and former One Direction member Zayn Malik have a two-year-old daughter named Khai.

So the last thing Bella needs is her sister to be with an unstable man who refuses to commit.

"Bella believes Gigi should concentrate on providing a stable life for her daughter rather than becoming involved with a model chaser like Leo."

Unfortunately for the brunette bombshell, her efforts to rouse up her sister have not been fruitful.

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After all, the insider claims that Gigi refuses to listen to Bella since she is older than her and an adult who can make her own decisions.

Gigi recognizes that she is an adult who can think for herself. She apparently does not want to give up on Leonardo DiCaprio simply because Bella or her family dislikes him.

"She'll see this through to the conclusion."

However, this allegation should be taken with a grain of salt because there is no conclusive evidence that Bella Hadid cautioned her sister Gigi Hadid to avoid Leonardo DiCaprio.

The Hadid family has also not stated if they approve of the actor's choice for the supermodel. As a result, no one knows where they stand.

Leonardo, on the other hand, does not have a good reputation when it comes to dating and relationships. He still refuses to start his own family and settle down, even though he is in his late 40s.

It's also unclear if Leonardo DiCaprio and Gigi Hadid are even dating as they have not confirmed their relationship status, but have been spotted several times hanging out.

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Tags: Gigi Hadid bella hadid Leonardo DiCaprio