Christina Talks 
 
 Cher, her Burlesque costar, became a close confidante to the fledgling actress on-set, talking to her about life, love, and relationships. "The details of those conversations I will only discuss with Christina," she told us. "But I enjoyed being around her a lot. She's funny, but she's also kind of shy and guarded. You have to earn her trust. She's a great mom. She works hard at it. It's not easy to put in 16-hour days and also be a good mother. It's hard to feel like you're doing any job well. But she did. And she showed great promise as an actor." 

 A mere two days after announcing she had separated from husband , music executive Jordan Bratman, Christina Aguilera has officially filed for divorce, PEOPLE reports. The singer filed papers in Los Angeles on Tuesday. The couple have been married almost five years.In the documents, Aguilera cited irreconcilable differences as the reason for the split. According to RadarOnline.com , she asked for joint legal and physical custody of their son Max and that both parties pay their own legal fees. She also requested that all spousal support be terminated.The papers list September 11, 2010 as the date of separation and also confirm that the couple had a prenuptial agreement. In the prenup, Aguilera specifically requested that the courts deem her "miscellaneous jewelry and other personal effects" as well as her "earnings and accumulations... before marriage, during marriage and from and after the date of separation" as separate property. 

 Christina Aguilera made a late-night trip to a Los Angeles hospital in the days leading up to her divorce from husband Jordan Bratman, RadarOnline.com has learned exclusively. 
 
 PHOTOS: Christina Aguilera Surfaces With Son After Filing For Divorce 
 
 “Christina was bleeding from her mouth and had a bit of a busted lip,” a source, who saw the couple at Cedars-Sinai Medical Center, said. 
 
 “Jordan told the nurses she had fallen down.” 
 
 PHOTOS: Christina Aguilera Parties In Honolulu 
 
 According to the witness, Aguilera was sporting “bumps and red bruises” along with her bloodied lip. 
 
 “Shortly after they arrived to Cedars, Christina’s ‘private surgeon’ arrived to put a few stitches in her lip,” the source added. 
 
 PHOTOS: Celebs Who Have Broken Up In 2010 
 
 Adding to the mystery of why the singer needed treatment, on October 12, she was photographed wearing a hat pulled down over her face with what appears to be a small cut below her lower lip. 
 
 That is the same day that she and Bratman announced the end of their five-year marriage, citing “irreconcilable differences.” 
 
 Aguilera’s rep had no comment when contacted by RadarOnline.com. 
 
 DOCUMENTS: See Christina Aguilera’s Divorce Papers 
 
 The 29-year-old superstar asked for joint legal and physical custody of their two-year-old son Max and for any spousal support to be terminated. 
 
 As RadarOnline.com previously reported, the couple had an open marriage that, according to source, led to jealousy within their relationship. 
 
 PHOTOS: Gal Pals Christina Aguilera And Kim Kardashian Hang Out In Miami 
 
 “My understanding was that Jordan wasn’t involved when she [Christina] brought girls home, so maybe the divorce is because Jordan’s jealousy got the best of him,” the source told RadarOnline.com. 
 
 Since her breakup, the Beautiful singer has been leaning on close friends like Samantha Ronson for emotional support. 
 
 VIDEO: Christina Aguilera Channels Madonna And Lady Gaga 
 
 Christina and Sam grew closer as her marriage crumbled and eventually Jordan found himself unnecessary in his wife’s life. 
 
 RELATED STORIES: 
 
 EXCLUSIVE: Christina Aguilera Turned To Sam Ronson During Crumbling Marriage 
 
 EXCLUSIVE: Christina Aguilera Had ‘Open Marriage,’ Says Woman Approached By The Singer 
 
 Christina Aguilera Files For Divorce: We Have A Prenup 
 
 Christina Aguilera And Husband Split 

 SEXY CHRISTINA AGUILERA was dumped by husband JORDAN BRATMAN because of her lust for lesbian romps, it was claimed yesterday. 
 
 The couple had an "open" relationship to allow the 29-year-old Dirrty singer to play out her female fantasies, according to rumours sweeping Hollywood. 
 
 But music executive Jordan, 33, is said to have become too jealous. 
 
 Close friend ... Sam Ronson 
 
 Christina, who filed for divorce last week citing "irreconcilable differences", turned to lesbian friend SAM RONSON for emotional support after the split. 
 
 And some pals believe the superstar and DJ Sam - LINDSAY LOHAN's ex and sister of pop producer MARK- could be lovers. 
 
 They were seen together at a hen do thrown by US socialite NICOLE RICHIE in Mexico last month. And a source said: "Christina and Sam looked really close. It was after Christina had split with Jordan but before they announced it. 
 
 "They have been tight for some time and now people are speculating they could be an item." 
 
 Christina, who has a two-year-old son, Max, is said to be "incensed" by the claims. 
 
 Friend or lover? ... Sam Ronson leaves Christina's home at 2am last week SPLASH 
 
 Her camp insisted she and Sam are just good friends. 
 
 And the singer suspects Jordan is playing dirrty tricks to gain early ground in a divorce battle. 
 
 Last week a woman claimed she was approached by Christina's minder in Los Angeles bar The Abbey to see if she was interested in the blonde beauty. 
 
 She told a US website: "The bodyguard told me it was an understanding within their marriage and that she brings girls home and Jordan's OK with it. 
 
 "I met Christina in the bathroom and she told me she liked to play with girls. 
 
 "I ended up not pursuing anything with it because the situation just seemed so weird to me. But Christina was definitely looking to hook up. 
 
 "My understanding was that Jordan wasn't involved when she brought girls home. 
 
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 "So maybe the divorce is because Jordan's jealousy got the better of him." 
 
 Christina has previously confessed to fancying women - and hinted at enjoying girl-girl romps. In an interview earlier this year, she admitted: "If I want to be sexual, it's for my own appreciation and enjoyment. 
 
 "That's why I like to talk about the fact that sometimes I am attracted to women. I appreciate their femininity and beauty. 
 
 "My husband knows that I get into girls. I think it's fun to be open and play. 
 
 "My husband and I check in with each other but I definitely love women. I think they're more attractive to the naked eye." 
 
 Christina slipped on sexy undies to get up close and personal with another scantily-clad girl in a steamy video for her hit Not Myself Tonight, which charted back in May. 
 
 But she insisted she would not want a full-time relationship with a woman due to her love of sex with men. 
 
 p.samson@the-sun.co.uk
– In the wake of her split from hubby Jordan Bratman, Christina Aguilera opens up to Redbook. “It’s not easy,” she says. “Thankfully, I have my mom and a small group of close friends who are there for me 24/7 and whom I can trust and depend on.” (One of those friends is Lindsay Lohan's ex, Samantha Ronson—with whom Aguilera has been romantically linked, the Sun notes.) “On days when it feels impossible to even get out of bed, much less function as a mother, their support and encouragement have kept me moving forward,” Aguilera continues. Of course, Radar has a much less optimistic story: Aguilera was seen at a Los Angeles hospital days before filing for divorce, and was “bleeding from her mouth and had a bit of a busted lip” along with other “bumps and red bruises,” a source says. “Jordan told the nurses she had fallen down.” For more on the divorce filing, click here.