Hook Ups

Dr. Gerard Butler displayed his vast knowledge of the female anatomy ... by administering a mammogram in a public parking lot.

Butler was in Malibu this week with an unidentified smoke show when he started exploring inside her bikini balloons -- following up with a tush grab.

8:47 A.M. PDT -- We're told the game was a Roc Nation charity event. Rihanna was scheduled to be there and Chris was supposedly a "surprise appearance."

Rihanna is ridiculous ... and thirsty like Moses wandering the desert.

She showed up in the front row at a charity basketball game Thursday ... eyes trained on ex-BF Chris Brown.

Now that she's with Drake again and not Chris Brown again ... you'd think she wouldn't fuel the fire. But then again, who are we kidding?

It's a special kind of insult to Karrueche ... who's back with Chris after being repeatedly humiliated by whatever continues to transpire between him and Rihanna.

Your move Karrueche.

Little boys can't have grown man toys ... is what Tyson Beckford said about Justin Bieber ... and it's AWESOME!

A somewhat drunk Beckford was leaving 1Oak in West Hollywood ... when our photog asked him about Justin hanging out with his ex-GF Shanina Shaik on a yacht in Ibiza.

Beckford then said things about Shanina, himself and most of all the Biebs that rank among the 10 most awesome celeb comments in 2014.

YOU GOTTA WATCH THIS VIDEO!

We anxiously await Bieber's Instagram response.

Taylor Swift and John Mayer showed up at the same place Wednesday night ... eating dinner within eyeshot of each other ... and we know what didn't happen.

We got pics of Swift and Mayer leaving Chateau Marmont in West Hollywood in separate cars ... so there's smoke.

But there's no fire. Our Chateau spies say John and Taylor saw each other but didn't exchange a single word.

They famously dated a few years ago and traded breakup songs about their relationship.

Rihanna's antics at Tuesday night's Drake/Lil Wayne concert left little doubt ... she and Drake are banging again ... and she really, really wants people to know.

RiRi was front and center during the show and made quite a spectacle while Drake was on stage. You'd have to be blind to not spot her jamming in the crowd next to a few of Wayne's family members. Hasn't she ever heard of keeping things on the DL?

The concert wasn't the end of their night ... with sources telling us Drake and RiRi showed up to after parties at 1Oak and The Attic following the show. The flammable duo were both at a NYC nightclub Monday as well.

So Drake and Rihanna walk into a club ... which means they were banging, right?

The former couple hit up Griffin nightclub in NYC Monday night ... and according to photogs they were there for nearly 2 hours and left at around 3 AM -- 21 minutes apart.

Eyewitnesses inside the club tell TMZ ... Drake and Rihanna had tables next to each other and were deep in conversation, flirtatious and whispering in each other's ears.

Jennifer Lopez and Casper Smart were back together Monday ... and when she spotted the photog she ducked for cover -- which totally means they're banging!

We think it's JLo's car ... it's definitely not his, although he's driving.

JLo and Casper broke up in June after dating 2 1/2 years. There were reports Smart cheated on JLo with a transsexual, but he denied it and threatened to sue.

As we reported ... the breakup was amicable and they parted as friends. Now it appears there may be benefits to the friendship.

Audrina Patridge is on the market again after 5 years with BMX biker Corey Bohan ... but retired NFL stars apparently aren't part of her rebound plan.

Audrina was at LAX giving us some relationship advice when a recently minted NFL Hall of Famer just happened to stroll by ... which got our cameraman thinking he'd be the perfect rebound guy.

We'll let you see how the encounter played out ... but suffice to say she's still available

Poor Sapp ... look what he's missing out on.

Chris Brown says he's back with Karrueche because she finally realized he did NOT have sex on a St. Tropez yacht.

The on-again-off-again couple is now on again ... and Chris says it's because Karrueche now realizes he was telling her the truth when he said he was not having sex with anyone else.

Sources close to Karrueche tell us ... he was frantically texting and calling her -- more than 20 attempts a day -- to acquit himself, but she ignored him.

We're told Saturday ... Karrueche showed up at Chris' celebrity flag football game to talk it out ... which they did, and she believes him.

As for the whole yacht thing ... there definitely was smoke ... he was on the vessel cavorting with several women, including one of Karrueche's close friends.

Antonio Banderas is single and ready to mingle ... and he zeroed in on an attractive woman while partying in St. Tropez over the weekend.

Ian Somerhalder and Nikki Reed don't just eat healthy ... they look damn happy doing it.

Ian and Nikki hit up the Farmer's Market in Los Angeles Sunday and the newly minted couple couldn't contain their happiness with fancy juice drinks in hand.

We're guessing it's because they both realize how hot their significant other is.

The couple's taking things to the next level ... attending the Creative Arts Emmys together Saturday -- and even adopting a horse.

Justin Bieber's been dropping a four letter word on Selena Gomez -- but it's not the one you're thinking.

Sources close to the couple tell us J.B. and the Gomes spent the entire weekend together ... and it was filled with lots of "I Love You" talk on both ends.

It's been less than a week since they got back together ... but we're told they've already started calling each other boyfriend and girlfriend again.

As we previously reported ... Biebs and Selena went to church together last week ... they say to clean up their acts. Makes sense ...our sources say they did wholesome things like hiking and hanging out at home.

We're told Justin is doting over Selena -- almost like a servant ... and she likes it a lot.

Come and get it.

If Nicole Murphy were in the NBA she'd lead the league in rebounds.

Murphy and some young mystery man hit up Moonshadows in Malibu for lunch Saturday just days after reuniting with Michael Strahan for lunch Thursday in Beverly Hills.

And of course ... there's very handsome former NBA star Jim Jackson whom she was banging in Puerto Rico.

As we previously reported ... sources close to Strahan and Murphy told us there's a possibility for reconciliation -- so it's feasible this date was just a friendly meal.

These girls ain't loyal ... or are they?

Chris Brown and Karrueche Tran prove ... there really is a fine line between love and hate ... because it seems they're back together.

They two got super handsy Saturday at a charity football game in L.A.

Just days ago Karrueche had nothing but bad things to say about Chris -- and sources close to Brown painted an equally unflattering pic of the relationship.

We also got the former couple leaving the game ... and once again, Chris was openly affectionate.

Michael and Nicole, Justin and Selena, Chris and Karrueche ... maybe this is the secret to a long relationship.

Katharine McPhee can't keep her hands off her co-workers ... but it's not a director this time ... it's her new show's leading man.

McPhee was on set Thursday getting handsy with Elyes Gabel, her co-star in the upcoming CBS series, "Scorpion." Unlike her last on-set romance ... Gabel's not married and she's getting divorced.

You'll remember ... photos surfaced of McPhee locking lips with "Smash" director Michael Morris in October 2013. McPhee was married to Nick Cokas (though she claims they were separated) and Morris was married to actress Mary McCormack (they're still together).

Her next project will be interesting ... what the hell will she do if she co-stars with Neil Patrick Harris?

Barry White would be proud ... Justin Bieber and Selena Gomez can't get enough of their love -- TMZ has learned they're back on for the umpteenth time.

Sources close to Jelena tell TMZ ... the two are trying to work things out. We're told they even went to church together Wednesday night, and they're "trying to be better people."

Not coincidentally, Bieber posted a Bible verse on Instagram the next day that read, "After you have suffered a little while, God will restore, confirm, strengthen and establish you."

They were also spotted at the movies earlier this week and Justin posted (and quickly deleted) a photo that appeared to show Selena kissing his cheek.

Yes ... we're getting ready for a "Justin and Selena Break Up" story. Again.