Hook Ups

Kourtney Kardashian is flatly denying she's hooking up with Justin Bieber, but our sources say Bieber and company are laughing, because she is.

Sources close to Bieber tell TMZ the fling started in October when they ran into each other at The Nice Guy in West Hollywood.

Our source says Kourtney flirted and Justin decided to make a move, and they've hooked up a couple of times since then ... the last being this past weekend when Kourtney left Justin's Beverly Hills hotel at 4 AM.

Kourtney has been grilled like a cheeseburger by her family and she's insisted all she's done with Bieber is hang out with groups of people in the hotel.

Justin and company beg to differ ... as one source says, "He's single, she's single and they're just having a good time. Nothing serious."

Selena Gomez and One Direction's Niall Horan left the 'X Factor' finale after-party within seconds of each other Sunday night in London -- doing ZERO to help her claim that they're NOT dating.

Selena even hung backstage after 1D performed during the finale. Odd, since just days ago she insisted there's no romance between them and they're just friends.

For some reason, she tried to hide her face from photogs outside -- even though she'd already been seen hanging at the show. Maybe she's just in de-Niall?

Kourtney Kardashian made clear what TMZ has been telling you .... she's available.

Kourtney was out at The Nice Guy Friday with no Scott Disick in sight. As we reported, she's not getting back with Scott, although they're spending time together as parents of 3 kids.

She left the club late Friday night and made a beeline for the Montage in Bev Hills where Justin Bieber stays -- he was at the club as well. She left the hotel at 4 AM.

Her sister Kylie was hanging at Saks Fifth Ave Friday night ... sans Tyga. Although it seems weird, they're still together but often hang separately so as not to confuse their brands.

Michael Lohan wants to be able to hookup with his estranged wife without fear of getting arrested -- no easy task when you're married to Kate Major, but he's asking a judge nonetheless.

TMZ obtained docs Lohan filed asking the court to lift a restraining order Kate got against him last month when she feared for her safety. Sources connected to the troubled couple tell us Kate's been calling and texting him ever since her drunken arrest on a Jet Blue flight ... even during her rehab stint.

We're told they've even hooked up a couple times at a hotel where Lohan is staying. Obviously, Michael is worried he could get arrested for the contact with Kate ... as long as the restraining order is in effect.

Jimmy Graham's nightmare season might've just gotten a little better ... 'cause there's a super hot bikini model who says her ultimate career goal ... is to hook up with the Seahawks TE.

The ridiculously hot woman in question is Dalia Elliott ... who is also an actress, having starred in flicks like "The Bunnyman Massacre" and "Attack Of The B.I.M.B.O.S."

Elliott says she's a HUUUGE fan of the tight end -- and if he calls her up, he might end up seeing a little action after all this season.

Peep the gallery below Jimmy ... we could think of worse ways to recover from that season ending injury.

This thing might be real after all ...

Blake Shelton playfully gnawed at Gwen Stefani while "The Voice" was on a commercial break Monday night.

Officially, for all the doubters, the TV sweeps period ended 12 days ago -- so maybe they're not together just for ratings.

Then again, for you true believers ... there is still a 'Voice' finale to promote.

Nick Cannon and Nicole Murphy wrapped up a dinner date by doing something that proves they're definitely banging ... or maybe just BFFs.

Nicole and Nick -- who are both famously single these days -- grabbed dinner over the weekend in West Hollywood. Nick was dressed to the nines, as usual ... and Nicole looked fine as hell, as usual.

After dinner they went furniture shopping. Unclear what they browsed -- tables, couches, or mattresses -- but it's an odd way to follow up dinner. As for the other obvious question ... there were rumors earlier this year they were together.

However, a source close to both Nick and Nicole tells us they're just "friends."

Nick picks his friends well. Very well.

Justin Bieber is dating lots of chicks ... and he says he's not back with Selena -- but it sure seems he wants the option.

The Biebs posted this pic of him with S.G. back in the day ... it looks like 2013.

As for why he did it ... reports surfaced Selena was macking One Direction's Niall Horan at Jenna Dewan-Tatum's 35th BD party Friday night at Bootsy Bellows.

It's like Jake in "Brokeback," ... right?

It's true ... Tim Tebow did NOT have sex with ex Miss Universe Olivia Culpo, but that didn't break them up -- because they weren't actually dating ... TMZ Sports has learned.

According to multiple reports Tebow and Culpo split up recently due to Tim's commitment to abstinence. The story goes ... she wanted it, but he wasn't giving it up.

Well, sources close to the situation tell us Tebow and Culpo's romantic relationship never went beyond the rumor stage. We're told the chatter started after Olivia and Tim met in church a few months ago -- and even though their reps denied it, a lot of people ran with it.

Our sources say Tim did show interest in Olivia, and they hung out a few times WITH mutual friends ... but never had a one-on-one date.

Joe Jonas should have no problems rebounding from Gigi Hadid ... thanks to his new bachelor pad.

As we previously reported, the middle Jonas brother sold his WeHo home and has been doing the Airbnb thing in the Hollywood Hills. The place is a total chick magnet.

It's near the top of L.A.'s famous Runyon Canyon with a pool and insane views. Appropriately, most of its glass walls open to let Joe (and any guests) take in the canyons.

As for bedrooms ... it's got 7, so plenty of opportunities to forget about his last chick.

It looked like Ryan Seacrest was OUT of the dating pool, but the hot chick traveling with him -- with the big ole rock -- is NOT Seacrest's one-time girlfriend.

Ryan hopped a flight in London today with a woman who looks a lot like model Renée Hall -- so much so, the photo agencies identified her as Renée. But TMZ has learned the lucky lady sporting the massive diamond ring is Sarah Mutch. She's reportedly engaged to mega celeb realtor Kurt Rappaport.

Seacrest's reps tell us Ryan was traveling with Kurt and Sarah in Europe.

It's unclear if Renee and Ryan are still a thing -- they haven't been seen together for some time.

So, false alarm -- Ryan NOT engaged, and ... congrats to Sarah and Kurt?

Still, this is as good a reason as any to revisit Renée's hotness.

Scott Disick and Kourtney Kardashian couldn't wait until Thanksgiving -- they broke bread a day early with one major difference from their usual get-togethers.

The exes did lunch at Marmalade Cafe in Calabasas sans their 3 kiddos, meaning they finally got some one-on-one time -- possibly to discuss reconciling.

Scott and Kourtney recently hung out at a party in Malibu, and they've been together for family events with their children -- but this is the first time we've seen them get some QT.

Behold lord D working his magic ... again.

Pauly D and Aubrey O'Day are dating after hitting things off on their new reality show.

It's a match made in reality TV heaven if you think about it ... Pauly used to be on "Jersey Shore" and Aubrey launched her career on Diddy's MTV reality show, "Making the Band 3."

We're told they met on the set of "Famously Single" where they've been holed up in the same pad with others for about a month.

Justin Bieber and Selena Gomez are back together but only as friends ... at least for now we're told.

Our sources say Justin and Selena are telling friends they haven't hooked up again despite being inseparable over the weekend.

The two were spotted out in Bev Hills Friday night, and then again Sunday at Justin's AMAs after-party at The Nice Guy in West Hollywood.

We're told Justin and Selena kept their hands to themselves mostly at JB's party, and they didn't leave together at the end of the night. Justin left with Halsey, who appears on his new LP.

Even if they're not doing the deed, it's interesting Selena's back to hanging with Justin's crowd. She'd distanced herself from them after the breakup.

Hours after he devoured Meghan Trainor's face on national TV ... Charlie Puth was still flying high and insisting the whole makeout sesh was 100% authentic.

If you missed it -- Meghan and Charlie had just finished singing "Marvin Gaye," and then started getting it on ... on the American Music Awards stage! Mouths were open, tongues were probing, and heads and asses were grabbed! It became one of the night's most talked about moments.

After the show, we got Charlie at Craig's and he was grinning from ear to ear -- looking a lot like a guy whose PDA turned into more than just kissing. Even though he tweeted "we are just friends" ... that's not the tune Charlie's singing in this clip.

Producers for The American Music Awards had a last minute scramble Friday night after Tyga and Kylie called it quits.

A source close to Sunday night's show tells TMZ the two were originally supposed to be sitting together in the crowd. However -- to avoid any serious drama -- we've learned producers now have Tyga sitting a few rows back from Jenner.

Our source also says Gwen Stefani and Blake Shelton will be paired together and Justin Bieber and Selena Gomez will be front row ... but not beside each other.