Hook Ups

Emma Watson was spotted out in Santa Monica yesterday, getting quite cozy with her "Perks of Being a Wallflower" co-star Johnny Simmons.

We told you yesterday ... Tiger Woods ex-wife is dating marketing exec Jamie Dingman, whose dad is a billionaire tycoon. But before Elin, sources tell TMZ Jamie and Rachel were an item -- and there was a little bit of an overlap with Jamie and Tiger, but Jamie bowed out to the golfer.

In fact, when Rachael got serious with Tiger, Jamie joked with her, "That ok. I'll date his wife, Elin."

And get this ... at the time the Tiger Woods scandal broke, Jamie was living with Rachel in a MIami home.

And there's more. Remember the name, Jen Madden? She's the one who sold the Tiger Woods story in the first place, and she got the info because she stayed at the Miami home and overheard Rachel tell Jamie about her affair with Tiger.

The guy is Jamie Dingman, a New York marketing exec.

A Swedish photo agency came to TMZ with what they said was a photo of the two, kissing and hugging outside Elin's apartment in Sweden. TMZ has seen the photo -- but the agency decided it wanted to hold it ... at least for now.

Jamie's dad, Michael Dingman, is a very wealthy investor. Jamie specialized in Russian private equity funds and he also owned an Indy car-racing team.

He reportedly dated Bridget Moynahan, Tom Brady's baby mama. He was also linked to Princess Madeleine of Sweden, but the New York Post says they were just friends. It does, however, provide a Swedish connection.

The photos have appeared on a Swedish website Expressen.tv as part of a video package. Good luck translating.

Joie Chavis tells TMZ ... she was shocked that B.W. wasn't there for her when she went under the knife for an emergency C-section on April 27. And if Bow Wow's excuse was squeamishness, it didn't explain his absence in the days that followed.

He finally showed up on the 6th day of the baby's life, to take them home.

Pissed as she was, Joie tells us Bow Wow has turned it around and now is all about baby Shai.

The photo was snapped Thursday night inside Beacher's Madhouse at the Roosevelt Hotel in Hollywood.

But this is no one-night thing -- we're told Todd was at Paris' pre-July 4th party on Friday where the two "only had eyes for each other."

TMZ spoke with Lena Griffin (pictured above left) -- mother of Miss January 2011(pictured above right) -- who tells us her daughter has NEVER been Hef's girlfriend -- adding, "the rumors that they are dating were just for publicity."

Lena explains -- "They met at a party a few years back, but they are JUST FRIENDS. That's what [Hef] means when he says Anna is his 'best girl'"

She adds, "It makes me feel so much better to know there is not any hanky-panky going on."

The photo was shot at the Buonanotte Supperclub in Montreal on June 12 right around midnight.

One source inside the club tells us the two were "all over each other" the entire evening ... and were even seen making out.

Nothing like a little PDA to strengthen your relationship.

LaBeouf gave a tell-all, no-holds barred interview to Details.com, in which the interviewer asked point blank if Shia ever hooked up with Fox ... and according to the article, "LaBeouf nods affirmatively."

LaBeouf explained, "Look, you're on the set for six months, with someone who's rooting to be attracted to you, and you're rooting to be attracted to them."

"I never understood the separation of work and life in that situation. But the time I spent with Megan was our own thing, and I think you can see the chemistry onscreen."

But here's the CRAZY part -- the interviewer says he asked if Megan was dating B.A.G. during their hookup ... and LaBeouf replied, "I don't know, man. I don't know. I don't know. I don't know. . . ." repeating the phrase exactly 12 times with various intonations, as if trying to get it just right.

LaBeouf eventually said, "It was what it was."

Bush's new chick is actress and singer Melissa Molinaro -- who was famously compared to Kim K for the way she looked in an Old Navy commercial earlier this year.

Sources close to the couple tell TMZ ... the two met roughly two years ago through mutual friends ... but stayed platonic because they were both seeing other people at the time.

We're told the pair reconnected last summer -- after Reggie and the "real" Kim parted ways -- and became "official" by Christmas.

Things have been heating up fast -- the two have been spotted at the movies, at church ... and Reggie even hopped a flight to London earlier this month to watch Melissa perform at a London nightclub.

Dedication.

Sources at the couple's hotel tell TMZ, they stayed for 5 days in a 3-floor villa at the swanky Kivotos Mykonos hotel -- from June 15th to June 20th -- which normally runs $5,190 a night.