Stars In Heat

Katy Perry's got an unlikely new BF -- rapper Riff Raff -- at least that's on Riff Raff's wish list ... because he's SMITTEN after the two went on a date last week ... despite his obvious addiction to other women in thong bikinis.

Raff was out in Miami Tuesday when we asked about his date with the "Dark Horse" singer -- Raff says he took Katy out for the Holy Trinity ... sushi, bowling, and drinks ... and he had a blast.

If Katy's down -- Raff says he'd love to see her again ... maybe next week when she's back in the country.

We're a little surprised though -- Katy's a busty woman ... and from this clip, it's pretty clear Raff's an ass man. You gotta see it.

Scott Disick threw caution to the wind and gave Jon Hamm a run for his free-flowing money as he went out on a grocery run yesterday in Calabasas.

SF 49ers star Patrick Willis knows what he likes ... CHICKS IN THONGS ... and he went after it hard on a beach vacation to Australia.

Willis -- along with former NFL linebackers Takeo Spikes and Carlos Emmons -- are on a boys trip Down Under and decided to go searchin' for ass on Bondi Beach.

Good news -- they found it.

While Willis was able to pull off the 2-on-1 all by himself, Spikes and Emmons teamed up to chat up two other thong'd up ladies who were catchin' some rays.

Every winter birds fly south and smoking hot models -- like Paz Cornu and Karina Jelinek -- fly north to Miami Beach to tan every last inch of their bodies ... asses AND ass cracks included.

See, winter ain't so bad after all.

Record temperatures in Miami this week -- after these two Argentine models scorched the beach ... wearing these ridiculous thong bikinis.

10:16 AM PDT -- Lohan just told TMZ, "It's a lie." He says Spanish GGW was a real business venture and Reitano even met with Joe Francis. Michael also says there were no naked women involved. Has he seen the videos?

Michael Lohan used naked girls as bait to entice an investor to cough up thousands of dollars ... according to a guy who's suing Lohan for more than $1 million claiming he was had.

Richard Reitano says Lohan came to him in 2009 with a plan to dub over Girls Gone Wild videos in Espanol ... and then asked him to invest $100K.

According to the lawsuit, Lohan claimed GGW creator Joe Francis had given him the rights to the videos ... but he needed cash to get the ball rolling so Reitano loaned him $25K,

But Reitano claims it was all a scam because no videos were ever produced.

The video vixen who played tonsil hockey with Justin Bieber has graduated ... from groping the Biebs to fondling supermodel Nina Agdal in a bikini.

TMZ has learned Cailin Russo recently signed a modeling deal with swimwear giant Op, and her first photo shoot was the definition of a win-win (for the world) -- since she's practically attached at the hip with S.I. swimsuit babe Agdal.

Op honchos told us Cailin wasn't on their radar until they saw her in Bieber's "All That Matters" video -- so, uhh ... way to go Justin.

Flashing her boobs probably didn't hurt Cailin's career either.

Now we know why Justin Bieber went nuclear Friday during his deposition when the opposing lawyer asked about Selena Gomez ... he was clearly still hot for her, as evidenced by their pretty steamy dance session later that day.

TMZ broke the story ... Justin met up with Selena in McAllen, Texas Friday at a dance studio where they spent a couple of hours.

Glen "Big Baby" Davis is adjusting pretty well to life in L.A. ... crushing it on the court -- and also at the nightclubs ... and TMZ Sports has the video proof.

We spotted Davis leaving DBA nightclub last night ... with (at least) THREE hot chicks in tow.

After they got in his waiting SUV, a bunch of other chicks flocked to Glen's ride ... like skeezer moths to a rich and famous flame.

Aside from chick wranglin', Davis also talked basketball -- telling us his L.A. Clipppers are gonna win the NBA championship.

Robin Thicke is either sending mixed messages to estranged wife Paula Patton or he's thrown in the towel on the marriage, because he was out clubbing late Monday night.

Robin was at DBA in Hollywood ... a Hollywood cabaret dance club and interactive gallery space -- don't ask, because we don't get it either. He was celebrating his 37th birthday party with Leonardo DiCaprio.

Thicke left alone, at around 1 AM, accompanied by a driver and bodyguard.

Now here's the thing ... The club is known for its waitresses who walk around showing about as much boob as is legally allowed.

Dave Chappelle, NBA star Glen Davis, and Lil Twist were also there.

Here's who wasn't there -- Paula Patton. It's interesting. Over the weekend, Robin was on stage dedicating love songs to her.

We're told Paula's been keeping tabs on her hubby. Who knows ... maybe it's just how they roll.

The guys from "Workaholics" better give a big thank you to co-star Adam DeVine ... 'cause a porn site is offering to let them watch a smut session IN PERSON -- for giving it public props.

DeVine told Rolling Stone last week he has trouble writing at home because of Porn Hub ... adding, "they know what guys like" ... so the site reached out extending its open offer.

The letter says the company has partners who film close to the "Workaholics" set ... so Adam, Anders and Blake can cruise by anytime to check it out.

One package to rule them all ... and that package belongs to David Beckham ... so says Tommy Hilfiger who tells TMZ Sports the soccer icon is the GREATEST male undie model of all time.

This clip is actually pretty great ... it starts with our photog asking Tommy for a modeling job -- and in what may be the nicest "Don't call us" moment of all time, Tommy sings Beckham's praises as the "Underwear model of the century."

The interesting part -- Beckham never modeled for Tommy ... in fact, DB only ever modeled for the competition (Armani, H&M).

So ... sorry Mark Wahlberg ... and Antonio Sabato Jr. ... and Mehcad Brooks -- but when it comes to Tommy's pick -- you guys just didn't measure up.

Matthew Stafford's girlfriend is a MONSTER on the basketball court ... sinking 3-pointers like the female Reggie Miller (only she's way hotter than Reggie) ... and she's got the video to prove it.

The Detroit Lions QB hit the gym with Kelly Hall recently ... and fed her the rock over and over as she hit 4 threes in a row from various spots on the court

Aaaaand ... when she was done heating up the hardwood, Kelly put on her yellow bikini and hit up Mexico with the girlfriend of NFL draft prospect Blake Bortles (in the purple bottoms).

Maybe Brent Musburger was right ... it's good to be the quarterback.

Katherine Webb has hot friends ... well, at least 2 ... and she proved it in a bikini photo she posted online.

A.J, McCarron's girlfriend got together with Miss California 2012 Natalie Pack (middle) and another hot model Letícia Zuloaga (left) to show off their physiques ... and it was good.

The perks of being the #1 tennis player in the world ...

With just days until he's scheduled to hold court at the BNP Paribas Open in California, Rafael Nadal was chillin' in Mexico with his hot girlfrend Maria Xisca Perello.

The two were seen kayaking together on Tuesday -- the tournament begins on Thursday ... though Rafa has a first round bye since he's a #1 seed.

Don't hate Bar Refaeli because she's beautiful -- hate her because she's way MORE beautiful than you ... with a totally bare face.

Bar posted this selfie wearing ZERO makeup --- and flaunting a coconut beverage -- on a beach in Thailand.

Bar and coconuts. As hot as we imagined.