There are rumors that Rihanna is getting hooked on Leonardo DiCaprio.

There's reportedly something about the actor that makes her do everything that he asks from her. This is very unlikely of the singer, who is known to be carefree and strong-willed. However, some people change when they are in love so could this mean that she is starting to fall for him?

An insider revealed to Hollywood Life that the 26-year old singer recently made a vow to the 40-year old actor that she won't get a tattoo. Riri enjoys getting inked every now and then so this could be really hard for her to resist.

"Rihanna has always been the type of girl who does whatever she wants, when she wants. She wants a new tattoo on her body, but she's stuck because Leo asked her to promise him she won't let the needle touch her body until she falls in love again," their source said.

That promise made some people wonder how long she can hold on to that, but the source allegedly close to the singer is confident.

"She's a woman of her word and she's sticking to that," the insider explained.

It seems that Rihanna is ready to tame down because of Leonardo DiCaprio. So what does "The Wolf Of Wall Street" star have that turns her from a fierce tiger to a gentle kitten?

According to the website, the "Diamonds" singer is intrigued by the Hollywood superstar and felt like he is playing mind games with her.

"He wasn't possessive and that blew her mind," a source said.

Adding, "Rihanna loves a challenge, and he's unlike the dudes in her past, those were boys."

Riri's ex-boyfriends Chris Brown and Drake were quite possessive of her and they even got into a fight in a club because of her. Leo has dated some of the hottest models and celebrities in the world, but he never got into a fight because of them.

"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," the insider also revealed.

How long do you think Rihanna will be hooked on Leonardo DiCaprio?