Sandra Bullock brought her son Louis out to a pal’s birthday party in LA on Sunday. It was the latest outing for the mother-son duo that has been hanging out on the West Coast following a busy Summer of jetting around the world. They kicked things off in NYC, where Sandra wrapped up work on Extremely Loud and Incredibly Close. That movie, in which Sandra stars opposite Tom Hanks, will be out in limited release here in the US on Dec. 25. They were then off to London so Sandra could shoot Gravity with George Clooney. Now that she’s in California, Sandra’s been spending lots of time with one of her former leading men Ryan Reynolds. Ryan and Sandra get together frequently, went on a trip to Wyoming with Louis, and will also share the screen in the future with their project Most Wanted.

Sandra Bullock clutched her iPad yesterday as she left her trailer on the Brooklyn set of Extremely Loud and Incredibly Close. She and her costar, Tom Hanks, have been filming in the outer borough for the last few days, and her now walking son, Louis, even went out recently to check in on how things were going. Tom spent time in front of the cameras with a young costar, seeming to have some wholesome fun trying out a swing and drinking a Juicy Juice. Sandra and Tom have been busypassing glamorous days working on their adaptation of the Jonathan Safran Foer book, and he’s got another project hitting big screens soon with Larry Crowne, in which he stars opposite Julia Roberts,out in July. Next up for Sandra will be a stint shooting Gravity with George Clooney, who’s wrapping up a movie of his own, The Ides of March, in Michigan.

Sandra Bullock had her bags in hand as she left her NYC apartment this morning. She took a break from her usual East Coast routine to attend last weekend’s Oscars, where she was a presenter. Sandra arrived at the show looking on trend and glamorous in a red gown. She kept the party going even after taking the stage and was spotted at a bash snapping a photo with her The Blind Side costar Quinton Aaron. Sandra’s role in that film got her a golden statue for best actress in 2010, but she was all about this year’s big winners during her stay in LA.

The motorcycle entrepreneur – who allegedly cheated on the Oscar-winning actress with at least four women – admits he ”felt horrible” sleeping with other women but believes he was trying to ”self-sabotage” his life.

He admits in a forthcoming interview with US TV show ‘Nightline’: ”When I was doing it, you know, one, I knew it was horrible. It made me feel horrible. And two, I knew I would get caught eventually, and I think I wanted to get caught.

”I don’t think I know for a fact now what it was, you know. I mean, it was me trying to self-sabotage my life.”

The 41-year-old star – who has three childrenfrom previous relationships – ”still loves” Sandra, 45, who has since filed for divorce.

He added: ”It’s still hard for me to talk about, a little bit, because I still really love her and care about her.

”I’ve spent my whole life with the kids and with her trying to… protect her from everything, but the most hurt she’s ever been caused is by the person that wanted to protect her. It’s terrible, and she’s going to be hurt for a long time.”

The 40-year-old motorcycle entrepreneur’s lawyer Joe Yanny claims he is keen to get back with Sandra and continue their life together, despite removal vans being seen outside the couple’s home taking out furniture and boxes.

Yanny told People.com: “When all is said and done, he wants the same people who were living in his house before all this happened to still be living there.”

“And he wants to save his marriage with the woman he loves more than anything in his life. He’s focusing on what he’s doing and trying to make himself better.”

Sandra left Jesse after a series of allegations of multiple affairs were publicly revealed just weeks after “The Blind Side” actress was named Best Actress as this year’s Oscars last month.

In the wake of the revelations, Jesse checked himself into the Sierra Tucson Rehabilitation Center, in Arizona, to be treated for sex addiction before reportedly quitting last week over security concerns.

A source said: “He was fed up with all the media leaks from inside. He had privacy and security concerns.”

Jesse has since returned to the rehab facility for a reported 45-day recovery program. Meanwhile, Jesse’s sister Julie has come out in support of her brother, but did not comment on the state of his marriage to Sandra.

She said: “I am very, very, very much supportive of my family. We keep our family life very private.”

The motorcycle enthusiast – who is accused of cheating on the actress with at least four other women – has reportedly told his spouse that the problems in their marriage won’t come between her and his three kids, in particular his six-year-old daughter Sunny, who she is especially close to.

A source said: “Jesse told Sandra he’s going to make sure she sees Sunny as often as she’d like when he has her. She’s spoken to her and the other kids and has said she’s not going to lose them.”

Despite his reassurances, Jesse is said to have found it difficult to explain to Sunny – whose mother is his second wife Janine Lindemulder – why Sandra isn’t spending time with her at the moment.

The source added to America’s OK! magazine: “He told Sunny that he made some mistakes that really hurt Sandra’s feelings and made it impossible to trust him right now, so she went away to try to not be so angry.”

Despite her closeness to Jesse’s children, including his son and daughter with first wife Karla, sources have insisted that 45-year-old Sandra – who is in telephone contact with Sunny every day – has no plans to bid for legal custody of the children if she and the “Monster Garage” host divorce.

Her representative said: “There have never been any plans for Sandra to adopt any of Jesse’s children.”

Jesse – who is also accused of sleeping with stripper Melissa Smith, photographer Brigitte Daguerre and an unnamed mistress who is represented by high-powered lawyer Gloria Allred – has spoken about his regret over the upset and hurt he has caused Sandra.

The 40-year-old TV personality said: “There is only one person to blame for this whole situation, and that is me. It’s because of my poor judgment that I deserve everything bad that is coming my way.”

Despite Jesse’s regrets, it has been claimed that Sandra is planning to file for divorce. A source said: “She’s had enough. She’s ending the marriage.”

The motorcycle enthusiast has begged forgiveness from his wife of nearly five years for his alleged affair with tattoo model Michelle “Bombshell” McGee, but those close to him feel deeply let down.

A source told website RadarOnline.com: “I’m sure Sandra’s gonna be leaving him after this. I know he’s begging her for forgiveness, and I know he feels awful. He really does love her but he’s just a pig.”

“Of course all these biker guys are the same. I been hanging with them for years and they all mess around with dirty chicks – the dirtier the better – so I shouldn’t be surprised.”

“Looks like the end of marriage number three for Jesse, and that’s really sad.”

The friend also launched an attack on heavily tattooed model-and-stripper Michelle – who reportedly received $30,000 for her kiss and tell story of her alleged affair, which she claims lasted 11 months – with Jesse, branding her a “tramp.”

The source added: “What a stupid, stupid thing to do, mess around on Sandy with a girl like that? She is nothing but a tramp. Disgusting. I don’t know what he was thinking but I know what he was thinking with.”

Meanwhile, revelations have surfaced about Michelle’s private life, with her ex-husband alleging she is bipolar and a drug user in court papers relating to their divorce and battle for custody of their son, Avery.

In the court declaration, filed in January this year, ex-husband Ronald Shane Modica said: “It seems as the years go by Avery’s mother slips more and more into stripping, pills, alcohol and performances she does online, pornography, that she has brought into her home.”

“There have been pornographic shoots there and live Web cam pornographic broadcasts from her house.”

Michelle has preciously claimed in court papers that Shane was violent towards her and obtained a temporary restraining order against him on February 22, 2008.

He maintains he has never threatened or harmed his ex-wife.

The motorcycle enthusiast has spoken publicly about allegations he cheated on the Oscar-winning actress with tattoo model Michelle “Bombshell” McGee and admits he deserves “everything bad” which may come from his “bad judgment.”

Through his publicist Monique Huey-Jones, Jesse said: “The vast majority of the allegations reported are untrue and unfounded. Beyond that, I will not dignify these private matters with any further public comment.”

“There is only one person to blame for this whole situation, and that is me. It’s because of my poor judgment that I deserve everything bad that is coming my way.”

Sandra – who married Jesse in July 2005 – has left their marital home and is being comforted by family.

In his statement, Jesse – who has three children from previous marriages – begged his wife and loved-ones to forgive him.

He said: “This has caused my wife and kids pain and embarrassment beyond comprehension and I am extremely saddened to have brought this on them.”

“I am truly very sorry for the grief I have caused them. I hope one day they can find it in their hearts to forgive me.”

It is has been claimed Sandra first found out about Jesse’s infidelity when In Touch Weekly magazine – who ran an exclusive interview with Michelle – telephoned the actress’ team to warn her about the article.

In the interview, Michelle said their 11-month fling began while Sandra was away filming “The Blind Side” – the movie which earned her the Best Actress Oscar.

Michelle added: “I would never have hooked up with him if I thought he was a married man. He gave me the impression they were separated.”

Meanwhile, a friend of Michelle’s, her former roommate Lindsay Sinai, has insisted the couple’s romance was initiated by Jesse.

She told E! News: “Their relationship was more like a friendship. Nothing was ever said about a future. When she realized Sandra and Jesse were together, there was a lot of regret there.”

“Right away he started texting, calling. It was just an on-and-off thing for quite sometime. It wasn’t like an ongoing affair, not in a physical sense, the entire time.”