Rihanna & Leonardo DiCaprio 'Sexual Tension' After Playboy Mansion Kiss [PHOTOS]: Drake & Chris Brown No 'Knee Tremble,' Twitter 'Loves' Hottest New Hollywood Couple

Rumors currently suggest that things are getting rather hot-and-steamy between two of Hollywood's hottest stars.

Leonardo DiCaprio and Rihanna.

Just over the weekend, the two were spotted partying at the Playboy Mansion. At one point, a sexy Playmate spotted the duo making-out on the dance floor!

@MissCarlyLauren: "Just saw Leo and Rihanna make out while 'Pour It Up' was playing. What is this life."

But the 26-year-old "Diamonds" songstress and 40-year-old "Titanic" heartthrob are definitely trying to keep things low-key... The blonde bombshell quickly deleted the very telling tweet. 

The party was in honor of designer Nikki Erwin's 30th birthday, but most eyes were on the obvious sexual chemistry between RiRi and the infamous "Wolf Of Wall Street" bachelor. Check out some snapshots via TMZ. They flirted throughout the evening, but it remains unknown if they actually left together.

So, how does DiCaprio turn the Barbadian #badgal on so much (despite the age difference)?

An alleged HollywoodLife.com insider reveals:

"He's funny. He's real, honest and authentic... He holds a good conversation but the one thing that makes her weak every time she looks at him are his eyes. That alone makes her knees tremble."  

Sounds hot! RiRi's apparently crushing pretty hard - sorry Drake and Chris Brown!

"She loves looking into his eyes and when they talk she gets lost in those baby blues of his," the source continues. "Rihanna is open to the idea of dating if the vibe is right."

While the romance continues to slowly blossom, do MstarsNews readers think they make a cute (or perhaps odd) couple? Well, most Twitter fans approve...

@lilpammydawson: "if this is real my heart will explode."

@ASamantha: "I would 100% be here for this couple."

@TaylorMorgannn_: "If Rihanna and Leonardo DiCaprio start dating, they will be the hottest couple in Hollywood."

Maybe this is perfect timing for both hotties to attempt settling down again... share your thoughts in the comments section below!