Dave Grohl’s relationship with a Los Angeles hipster who ran a porn website has come under scrutiny amid his bombshell admission that he fathered a child outside his marriage. The randy Foo Fighters frontman, 55, is alleged to have gotten close to heavily tattooed Annaliese Neilsen, 40, even visiting her shared house and generously paying bills for her, sources told The Post.Gay porno Roommate Tyler Ammons, 30, described the shock of walking into the living room of their Highland Park home to find Grohl on the sofa cuddling up to Neilsen in 2018 — not least because he was a married father of three at the time. “It was very weird. They were very close on the couch. I obviously knew who he was when I walked in. “I felt uncomfortable knowing he has family and children and I left,” Ammons exclusively told The Post.  “It was casually a thing the whole time [we lived together]. She would leave and go and see him. She was going to go on tour with them around 2019.” Neilsen, real name Lara Neilsen, confirmed to The Post she is not the mother of Grohl’s recently confessed newborn daughter, fathered outside his 21-year marriage to Jordyn Blum, 48.  When asked if she’d had an extramarital affair with Grohl, Neilsen responded: “That is a person who I had a brief friendship with who I know through friends of friends.  “I have nothing to say except for that is absolutely false.” Neilsen founded God’s Girls, a website featuring tattoo models, around 2006, which led Gawker to label her an “alt porn goddess.” The site’s 2009 FAQ section described it as “an alt porn/alt erotica site with a lot of really really amazing, 100 percent exclusive pictures … the ladies are very lovely and some of them have tattoos and piercings and rebellious haircuts,” per Gawker. However, that venture ran into trouble with competitor Suicide Girls, which accused it of stealing its look. A different source who met Neilsen through another of her ventures — social networking group Girls Night In — in 2016, said she was previously more boastful about her alleged links to the “Everlong” singer. “She had pictures … She [had a relationship] with him for years. She would say, ‘He paid for all my bills.’ It’s like, why are you telling us this?” said the source, who asked to remain anonymous. The source also heard the “My Hero” rocker and Neilsen — originally from Washington state, birthplace of the grunge music that made Grohl famous — were spotted together at goth club Bar Sinister in Los Angeles. A spokesperson for Grohl didn’t return a request for comment about his links to Neilsen on Thursday. The friend from the Girls Night In group — a community of “elite all-female movers and shakers,” per an ABC profile — said they weren’t surprised when Grohl admitted in a shocking social media post that he had fathered a love child with a mystery woman. “When this whole thing dropped, nobody was surprised because it was an open secret that he’s a cheater,” they said. Grohl announced Tuesday he cheated on Blum and has recently welcomed a daughter, writing: “I’ve recently become the father of a new baby daughter, born outside of my marriage. I plan to be a loving and supportive parent to her. “I love my wife and my children, and I am doing everything I can to regain their trust and earn their forgiveness. We’re grateful for your consideration toward all the children involved, as we move forward together.”  Grohl — who has daughters Violet, 18, Harper, 15, and Ophelia, 10 — retained a divorce lawyer before he revealed the infidelity allegations, a source told People in a report published Wednesday.   Various outlets online previously identified Nielsen as the person in a viral video of woman chastising a Lyft driver for having a Hawaiian woman bobblehead doll on the dashboard of his car, threatening to have him fired in a five-minute-long argument. However, The Post wasn’t able to independently verify it is Neilsen’s voice in the video. Advertisement