The romance between Leonardo DiCaprio and Rihanna is reportedly getting serious.

The latest update claims that RiRi is concerned with "The Wolf of Wall Street" star's fitness that she wants him to trim down.

"Ri's got extremely high standards when it comes to who she sleeps with and Leo falls out of this category because he's a lot more flabbier than her usual lovers [Chris Brown, Matt Kemp and Drake]," an alleged source of OK! Magazine revealed.

However, Leo reportedly does not take it seriously as he find RiRi's teasing "all highly amusing," according to the source.

"He's never had a girl tell him what to do, so you can imagine how much he's loving it," the insider added.

But, the "We Found Love" singer is not one to take things sitting down as she immediately hired a trainer for Leo and signed him up for martial arts class, the insider claimed.

"She wants him to get a six-pack."

Meanwhile, Leonardo DiCaprio's attitude towards women has reportedly "blew" Rihanna's mind.

"He wasn't possessive and that blew her mind," an alleged source of Hollywood Life claimed. "She thinks he's playing some type of mind game with her and she's intrigued by it. Rihanna loves a challenge, and he's unlike the dudes in her past, those were boys. This is Leo, he's something else. He's hitting all the right spots and I'm not talking between her legs. He's making her feel good and stimulating her on an entirely different level."

If these statements were proven to be real, then RiRi really seems to be falling head over heels with "The Wolf of Wall Street" star.

An article from InTouch magazine once revealed that RiRi has asked Leo to come over her home in Barbados to finally introduce him to the family.

"Rihanna doesn't bring a guy home unless she really likes him," a source said.

"This is a sign she adores him. She's always thought he was cute. She loves his look, his sweet smile and his little nose."