Ryan Phillippe says goodbye to girlfriend Amanda Seyfried as she prepares to lave the Shangi-La Hotel and head to London.

Credit: Zimbio

Making for quite the interesting choice in locale, Ryan Phillippe and girlfriend Amanda Seyfried have opted to spend the weekend at the San Ysidro Ranch in Montecito, CA.

Situated just thirty minutes from Ryan's ex Reese Witherspoon's wedding grounds of Ojai, the new couple was spotted getting some exercise while taking their dogs for a jog on Saturday (March 26).

The visit to the San Ysidro Ranch comes as Phillippe's two children with Witherspoon, Ava and Deacon, are joining their mother as she walks down the aisle with agent beau Jim Toth.

The nuptials are expected to take place on Saturday night, with guests including actress Renee Zellweger staying at the ritzy Ojai Valley Inn & Spa.

Credit: Celebrity Gossip

Ryan Phillippe's ex/alleged baby mama has lawyered up ... and a legal battle is now brewing ... TMZ has learned.

Alexis Knapp -- the model/actress who claims to be carrying Ryan's baby -- has hired Mark Vincent Kaplan.

Ryan has said he'll take a DNA test once the baby is born and support the child if it's his, but Alexis is not satisfied.

And here's a fun fact. Kaplan repped K-Fed in his divorce/custody battle with Britney Spears.

Credit: TMZ

Ryan Phillippe's ex-girlfriend, Alexis Knapp, is pregnant – but she's not pressuring the actor to be involved with her unborn child.

"She has never asked Ryan for any help, nor does she expect it," a rep for Knapp tells PEOPLE.

According to a source, Knapp, who briefly dated Phillippe last summer, has told friends that she's expecting the actor's child in June.

Another source says that Phillippe, 36, is awaiting the results of a paternity test to determine if he's indeed the baby's father.

"Alexis has maintained her silence and will continue to do so," her rep adds. "Any 'source' claiming to have been her or her camp up to this point is false."

Adds the rep: "She continues to appreciate the love and support of her family and friends."

Credit: PEOPLE (Marla Lehner)

Despite reports Ryan Phillippe is expecting his third child with ex-girlfriend Alexis Knapp, the hunky actor and his girl, Amanda Seyfried, looked happy and in love while hiking in the Hollywood Hills.

An X17 photographer who spotted the lovebirds tells us:

Sounds like this is the real deal for these two.

Ryan has agreed to pay child support to ex-girlfriend Alexis Knapp, if a paternity test he's agreed to take proves he is the father. Knapp claims she hasn't been intimate with anyone since her relationship with Phillippe.

Credit: X17 Online

When pregnant actress Alexis Knapp announced that she was carrying Ryan Phillippe's child at a Hollywood bash in mid-February, it was a complete shock to everyone -- including the alleged dad-to-be!

A source tells the new Us Weekly that Phillippe (who wasn't present at the bash) was blindsided when he heard second-hand about Knapp's very public bombshell. "Alexis hadn't even talked to Ryan before that party," a second source says.

As Us Magazine first reported on Monday, the Lincoln Lawyer actor, 36, "doesn't know if he's the father," the first source says, but plans to take a paternity test.

Credit: Us Magazine

As Ryan Phillippe awaits the results of a paternity test to determine if he is the father of ex-girlfriend Alexis Knapp's unborn baby, Knapp herself is happily preparing for the birth, sources tell PEOPLE.

"She's doing really well, handling everything and just taking it day by day," a source says of the actress, who dated Phillippe last summer and is believed to be due in June. "She's excited for the baby!"

As for Phillippe, he is keeping a low profile until test results come back, adds another source.

"In all likelihood, Ryan's not doing or saying anything publicly until there's a paternity test that proves he's the father," says a source close to the actor.

And although the pregnancy came as a surprise to the public, "Ryan has known from the very beginning," adds the first source. "As soon as she found out, she told him. She found out she was pregnant while she was filming [her upcoming movie] So Undercover."

Phillippe, 36, who has two children with ex-wife Reese Witherspoon 34, has moved on romantically, and was spotted recently cozying up to Amanda Seyfried after the premiere for her movie Red Riding Hood, as well as at the opening of his The Lincoln Lawyer last week.

Credit: PEOPLE (Sara Hammel)

Ryan Phillippe might have to prep for round three of Daddy Duty!

The actor, 36, who already has two kids with ex-wife Reese Witherspoon, may become a father again -- so says his ex, pregnant model-actress Alexis Knapp, who has claimed she's carrying his baby. (Knapp recently stepped out in Hollywood, bearing an unmistakable baby bump.)

"She's in the second trimester," a source close to Knapp confirms to Us Magazine of Knapp, who next stars in the film Project X (out this Thanksgiving) plus the Miley Cyrus flick So Undercover. (A rep could not be reached for comment.)

First-time mom Knapp dated Phillippe for several months on and off last year before he ended the relationship in September. "She has been telling people he is the father," explains another source to Us. Counters the Knapp source: "She's not commenting on who the father is."

"Ryan doesn't know if he is the dad," adds the second source of the Lincoln Lawyer actor. "If he is, he will take full responsibility for the child."

Explains a third insider of Phillippe and Knapp: "He and Alexis were actually together for a while...It was pretty serious."

"He's a good guy," adds the insider. "He loves being a dad and takes being a dad really seriously."

His kids with Witherspoon, 34, are Ava, 11, and Deacon, 7.

"If this kid is his," the insider says, "He will do the right thing. He takes his responsibility seriously."

Phillippe's current squeeze is Amanda Seyfried -- although the duo have been tight-lipped about their romance. "I'm dating," said Phillippe on Friday's Ellen DeGeneres Show. "Not nearly as voracious as the magazines like to make out, [but] I am dating."

Credit: Us Magazine

Confessions of Ryan Phillippe . . . well, sorta.

The Lincoln Lawyer actor, 36, hasn't said much about his on-again romance with Amanda Seyfried.

Still, during a Friday appearance on The Ellen DeGeneres Show, Phillippe opened up -- just a teensy bit -- about his love life these days.

"I'm dating," admitted the hunk. "Not nearly as voracious as the magazines like to make out, [but] I am dating."

Phillippe (who has also hooked up with Rihanna in recent months, an insider told Us) didn't mention his Red Riding Hood love by name, but offered up what kind of women he fancies.

"Sense of humor. I like a strong woman," said the actor, who has two kids with ex-wife Reese Witherspoon. "I like individuality. I like a woman who's self possessed. Who knows who she is. Who knows what she wants."

Seyfried, 25, was similarly coy with Elle mag about Phillippe. "I've been 'seen' with him," she said in the interview.

Another lady interested in Phillippe's romantic life? His mom! Recovering from recent surgery, the star's mother "spends all day in front of the computer" and gets "really, really upset" by "negative" news about her little boy.

Plus, she noticed her son referred to as a "D.I.L.F." in online comments, and quickly discerned the acronym's meaning. "She's like, 'Yes, it means they want to have sex with him,'"

Added Phillippe, laughing: "I think she's embraced D.I.L.F."

Credit: Us Magazine

Pairing up for a romantic evening, Amanda Seyfried and Ryan Phillippe were spotted out to dinner together in Los Angeles last night (March 8).

The couple, who were said to have broken things off a few weeks ago, enjoyed a delectable meal at Craig’s restaurant before making separate exits to an awaiting vehicle.

Credit: Celebrity Gossip

Amanda Seyfried's career is hotter than ever -- and so is her love life!

In the April issue of ELLE, the 25-year-old Red Riding Hood actress finally confirms that she's been dating actor Ryan Phillippe, 36, since they met at Kate Hudson's Halloween party last October.

"I've been 'seen' with him," she says coyly.

It shouldn't be surprising that Seyfried is reluctant to talk about her casual romance with the Lincoln Lawyer star; her previous relationship with actor Dominic Cooper ended abruptly after she discovered he was still seeing his longtime girlfriend.

"I was just kind of foolishly thinking that the two of them were done and Dom and I were involved. But we weren't really as involved as I thought. So I got my heart broken pretty hard," Seyfried says of Cooper, her Mamma Mia! costar. "And then it took a long time for us to break up again. After that, it's really hard to open myself up to a new person. Really hard."

In fact, she admits that the split ruined her chance at a relationship with True Blood's Alexander Skarsgard, 34.

"We dated. He's super funny, but I was too involved with Dom," Seyfried admits.

According to the actress, it wasn't hard to fall for her Mamma Mia! costar on the set. "It's one of the easiest things in the world. You're both open. You're put in a situation where you have to make out with each other," she tells the fashion mag of Cooper, 32. "It's easy for things to get carried away."

As for her best on-screen kisses? "I can't lie. It didn't suck making out with Channing Tatum and Justin Timberlake."

Credit: Us Magazine

After meeting in October at Kate Hudson's Halloween party, Ryan Phillippe and Amanda Seyfried had a fast moving romance complete with sweet set visits, breakfast with friends and dinner dates.

But after reports of a rift, the romance seemed to fizzle even quicker than it began – until Oscar week.

On Thursday night the pair were spotted at the Grey Goose Pre-Oscar bash at L.A.'s Soho House, which also included a special celebration for the Oscar-nominated films Biutiful and Winter's Bone.

Phillippe looked dapper in a suit while Seyfried was more casual, and they mingled on the back patio, chatting with friends before leaving together. "Amanda seemed a bit uneasy but they were very much a couple," says a guest.

Two nights later they hit a private bash in a bungalow at Chateau Marmont – only to head out together once again.

"They're figuring it out," says a source. "When it's good, they're really good together."

Credit: PEOPLE (Jennifer Garcia)

After three months of dating, Amanda Seyfried, 25, and Ryan Phillippe, 36, have called an end to their three-month romance.

“They are not dating anymore," a source reveals to Us Magazine. "And it’s not a big deal for either of them.”

That seemed clear on Saturday when Phillippe hit on Rihanna, 22, at the Gucci/Roc Nation brunch at L.A.'s Soho House.

"He said something to the effect of, 'What are you doing tonight?'" a witness tells the new issue of Us Weekly.

As for his short-lived fling with Seyfried, a second insider explains, "At one point, there was a chance it would develop into something more serious, but it never did."

Credit: Us Magazine

Seemingly quite smitten with one another, Amanda Seyfried and Ryan Phillippe enjoyed a brunch date at Joan's on Third in Los Angeles on Friday (January 7).

The new couple were joined by two friends and Amanda's dog as they popped into the popular eatery before getting a bit camera shy while exiting to find awaiting paparazzi.

Of the scene, an onlooker told People magazine, "They were really cute. The two of them smiled the whole time."

Having just recently paired up, another insider says of the blossoming coupledom, "They're really into each other. They're a really good match and just enjoying it all right now."

Credit: Celebrity Gossip

Lauren Conrad has beat out Ryan Phillippe and Amy Poehler and made it to the third round of the 2010 Pop Sugar 100. Now she is trailing Jude Law and she needs your votes! So click here to put Lauren in the Pop Sugar Playoffs! Voting ends Wednesday.

The first round of the PopSugar Playoffs have begun! The Hills' very own Lauren Conrad (formerly), Heidi Montag, and Spencer Pratt are all in the running to become the final female or male left at the top of the 2010 PopSugar 100. Be sure to fill out your ballot - and enter to win a Chanel Bag  - so that your favorites stick around for round two!

Lauren Conrad has been matched up with Ryan Phillippe. Click here to vote for Lauren!

Spencer Pratt will go head to head with Matt Damon. Click here to vote for Spencer.. or not.

Which Heidi is your favorite? Klum or Montag? Click here to vote!

Voting for Round One ends April 14th!