Drake Serena's Bad Luck Charm!

Drake is the new Jessica Simpson ... because he showed up Friday to watch girlfriend Serena Williams in the U.S. Open ... and she lost!!!

Williams was on the road to making history as only the sixth player ever to win all 4 grand slams in a year ... but that dream got derailed by Roberta Vinci, who beat Williams in 3 sets.

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SUPPORT OR DISTRACTION?
ESPN

Drake was there to cheer her on to victory ... the first time he's watched her there. To be fair, he was present when Serena won at Wimbledon.

After the loss, Serena was understandably devastated -- but watch for her comment about Vinci's age. Is she throwing praise or shade?

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LET'S NOT TALK ABOUT IT
ESPN

Lewis Hamilton I've Got Kendall's Back Again ... At Fashion Week

Lewis Hamilton took a Rihanna detour (it's the thing to do, after all) ... but ended up right back with Kendall Jenner -- 'cause they were spotted out in NYC together looking pretty cozy.

The Kendall/Lewis rumors started swirling earlier this year when she was walking around the Monaco Grand Prix wearing what looked like his chain.

But then hurricane Rihanna started blowing in August, and it sure as hell looked like Lewis had moved on ... but you know how RiRi romances go.

Cut to NYC ... where it's now Fashion week. It's a huge event for KJ, so it's interesting that Lewis is hanging with her again. Kinda like when she showed up in Monaco for him.

One thing that's obvious --- Lewis just keeps winning.

Rihanna In Case There Was Doubt About Dating Travis Scott ...

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TOGETHER AGAIN
SplashNewsOnline.com

Rihanna has pretty much connected the dots ... she's dating Travis Scott.

RiRi and Travis left the Gramercy Theatre Wednesday night where he had just performed. It's the third time they've been together this week.

Side note: Check out how Rihanna air kisses her fans. She has the antiseptic greeting down pat.

Common Uncommonly Mature Over Serena & Drake Romance

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AS LONG AS SHE'S HAPPY
TMZ.com

Common seems genuinely happy Serena Williams is back with Drake ... which is especially impressive given the history between the 2 rappers over the tennis superstar.

We got Common leaving Ebaldi in Bev Hills Wednesday, and his well-wishes seem heartfelt.

You gotta watch the video ... Common is the gold standard.

Justin Bieber Works His Instrument ... Bags Playboy Chick

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TICKLING THE KEYS
YouTube

Justin Bieber showed off his fancy finger work in the middle of a bar to serenade super hot Playboy model, Xenia Deli.

Justin and Xenia weren't afraid of showing some PDA Friday night, snuggling on a piano bench as he played for her in front of the crowd at an L.A. bar ... and then hit the clubs afterward.

Xenia is in Bieber's upcoming music video for his new single -- "What Do You Mean?" and we're told he's really into her ... introducing her to all his friends and even posting a pic of them playing footsie.

The Biebs is really stepping up his game -- not only is Xenia four years older than him, she also has SI Swimsuit and Victoria's Secret experience ... in addition to Playboy.

Serena Williams Warned by Friends ... Don't Let Drake Play You Again!

Drake is getting a second bite of the apple that is Serena Williams -- but now that they're back on and popping, Serena's guard is up for one reason ... best summed up in one word: THOTs.

Sources close to Serena tell us she's been into Drizzy ever since they first hooked up in 2011, but that ended badly because he had his eyes on a few other chicks at the same time. Let's face it, Drake's game with strippers and Instagram models is legendary.

We're told Serena's willing to give him another chance because they have a "good vibe" -- which was on full display in the pics TMZ posted of their dinner in Cincinnati. Still, friends are warning her to be careful she doesn't get hurt again.

Our Drake sources say it's different this time -- he treats her with more respect than his other dates because Serena's a superstar in her own right. Translation: He doesn't have to worry about her using him for fame.

We're told she digs him showing up at her matches, and holds her family section tix for him. They're trying to take it slowly, but it's obvious from pics and videos ... they're crushing hard. Again.

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GAME. SET. MATCH.
Instagram

Drake And Serena Williams I'll Have the Tongue Restaurant Makeout Sesh

Game. Set. Smash.

Here it is ... proof Drake and Serena Williams are officially a thing -- making out at a fancy Cincinnati restaurant Sunday night ... and TMZ has the pics.

Hours after Serena dominated and won the WTA tournament in Cinci -- with Drake in the crowd -- the two hit up the uber-fancy Sotto restaurant in downtown for some hoity-toity Italian food (the porterhouse is $85).

The two had a private room in the back of the eatery -- where they couldn't keep their hands and lips off of each other ... while several patrons watched.

People inside the restaurant tell us the two were joined by 6 other people ...and at one point ordered a round of tequila shots for the table.

There have been rumors about the two hookin' up for months -- ever since Drake was spotted cheering for Serena at Wimbledon -- but now the pics confirm it ... it's game on.

Mally Mall and Malaysia Snaked in Hollywood

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IT'S WILD
TMZ.com

Mally Mall and Malaysia wore fancy boas Wednesday after celebrating her birthday, and it looks like they've hooked up.

The famed hip-hop producer and "Basketball Wives" star had dinner at the House of Macau, where it appears he placed a necklace around ... her neck.

Cut to their exit, where dudes on Hollywood Blvd. walk around with boa constrictors ... which accentuated the neckwear of both.

And then they slithered away ... and so did the snakes.

'Big Baby' Davis Matt Barnes Isn't Lying ... He Knows Rihanna

Rihanna needs to check herself -- and her smartphone -- 'cause she damn well has Matt Barnes' digits ... at least according to Matt's old teammate.

Glen "Big Baby" Davis jumped to Matt's defense today in the dispute over just how much of an item RiRi and MB are, or were ... before Matt told us they were "just past the crush stage."

Davis was on ESPN's "His & Hers" and told Jemele Hill and Michael Smith .... "He REALLY knows her." Now, did he mean that in the biblical sense? Check out the clip.

Kylie Jenner And Tyga 18 Makes Relationship Fair Game On Reality Show

Kylie Jenner and Tyga are now fair game for producers of "Keeping Up with the Kardashians" ... and it took no time at all for the cameras to capture their relationship.

The show didn't really touch on the relationship, because Kylie was 17 last season. But one birthday makes a big difference, so 'KUWTK' cameras were all rolling Tuesday during the family vacation in St. Barths.

Tyga and Kylie weren't flaunting it before ... but now they're selling it.

Bella Thorne And Gregg Sulkin She's Underage, He's Not They're Dating and it's Cool

Bella Thorne is 17 and Gregg Sulkin is 23 ... and they're dating, and it feels very Tyga/Kylie.

The duo hit the Teen Choice Awards doing very couple-y things -- holding hands, kissing on the cheek and calling each other "baby" and "sweetheart."

Source close to both Bella and Gregg tell us they are definitely "dating." What's more, we're told their families are cool with the relationship, in large part because she's almost 18.

There were a lot of people who saw them last night on the show and felt it was inappropriate, especially on a show like the Teen Choice Awards.

BTW, under California law they can do a lot. The only thing the law prohibits is penetration, which is defined broadly.

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BELLA AND GREGG AT THE 'TEEN CHOICE AWARDS'
FOX

Khloe Kardashian Lamar Who?? Gets Cozy With James Harden For His BDay

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SOME BIRTHDAY LOVIN'
TMZ.com

Khloe Kardashian clearly didn't have Lamar Odom on her mind Friday night when she partied in Houston to celebrate James Harden's birthday.

The two were at Aristocratlifes Engineroom for Harden's upcoming 25th ... and we're told the two were VERY close through the whole event -- dancing together for several hours.

Harden celebrated with other NBA players Zach Randolph and Pat Beverley and there were posters congratulating him on his $200 million Adidas deal throughout the venue.

You might remember ... it was earlier this week where Khloe was allegedly ambushed by ex-hubby Lamar Odom outside of a Soul Cycle class.

One thing's for sure -- Khloe seems to have put Lamar behind her.

Gloria Govan Rihanna Can Have Matt Barnes On One Condition ...

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HAVE AT IT
TMZSports.com

Rihanna snatching up your soon-to-be ex-husband is the kinda thing that would piss off most women -- but "Basketball Wives LA" star Gloria Govan says she's cool with Matt Barnes hooking up with RiRi.

Sources connected to the new Memphis Grizzlies star tell us Barnes and Rihanna have been on 2 dates in recent months -- it's nothing serious yet, but we figured Gloria would have an opinion about them hooking up. We just didn't know it would be this.

Watch the clip ... Gloria was outside Pump in West Hollywood, when she seriously encouraged Matt to get things going with Rihanna! She's already thinking about concert seats, telling us ... "Bitch better have my tickets."

But GG's got a few ground rules, and told us why she'll need to get involved ... if Matt wants to get serious with Rihanna. And why wouldn't he?

Miranda Kerr & Evan Spiegel Nerd Fantasies Do Come True

Snapchat founder Evan Spiegel is proof it pays to be a computer/social media geek ... not because of the $2 billion he's worth, but because he's got supermodel Miranda Kerr hanging all over him.

Spiegel, who's only 25, was with his smoking GF Wednesday about to board a flight out of LA -- and Miranda made it clear ... she has no issues with PDA.

Things have been heating up between Evan and Miranda since they first started hooking up in June.

See that kids? Go hit the books!

James Harden Jumped In to Kardashian Klan ... Bad News for Nike?

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PART OF THE FAMILY
TMZSports.com

James Harden got dragged through the Kardashian ringer -- a full weekend of family events -- and came out the other side, so he's official ... in our book, anyway.

Khloe Kardashian and her man were swarmed by photogs on the way out of Kylie Jenner's 18th birthday party Sunday night at Bootsy Bellows. He was also at the Friday night dinner in Malibu.

Here's the thing ... Harden doesn't look the least bit annoyed -- despite the standard Kardashian pap crush -- so, we're thinking he's all in with the 'K' klan ... and maybe Adidas too.

Remember ... Harden's spending a lot of time with Kanye West at these family functions, and since Adidas already makes Yeezys -- you gotta figure Kanye's talking up the company's $200 million offer to James.

Time's running out for Nike.

Seal My New Girl Has A Mariah Carey Connection

Seal enjoyed a romantic afternoon aboard a yacht in Amalfi, Italy ... and his new woman just happens to be former Australian model Erica Packer.

And yes ... that's Packer, as in the ex-wife of James Packer -- y'know, the billionaire guy dating Mariah Carey.

Small world ... especially for the super rich.