A 20-year-old California woman claims she has given birth to Justin Bieber's baby. In a paternity lawsuit, Mariah Yeater claims she had 30 seconds of sex with the teen pop idol during a concert held in Los Angeles on October 25th, 2011. Representatives for Justin Bieber have denied the claim. At the time of alleged encounter, Bieber was 16 years old while the woman was 19. According to the suit, Yeater alleges that security staff working for Bieber approached her at the concert and asked she wanted to meet Justin Bieber. In her affidavit, Yeater says: "Immediately, it was obvious that we were mutually attracted to one another, and we began to kiss. Shortly thereafter, Justin Bieber suggested that I go with him to a private place where we could be alone. I agreed to go with him and on the walk to a private area, he told me he wanted to make love to me and this was going to be his first time." Bieber apparently is the romantic type, opting to have sex in a toilet. Yeater says: "After walking away from the other people backstage, Justin Bieber found a place where we could be alone — a bathroom. We went inside and immediately his personality changed drastically. He began touching me and repeatedly said he wanted to f*ck the sh*t out of me. At the time I asked him to put a condom for protection, but he insisted that he did not want to." The suit is asks that Bieber take a paternity test to confirm that he is the father. Justin Bieber's representatives said: While we haven't yet seen the lawsuit, it's sad that someone would fabricate malicious, defamatory, and demonstrably false claims. We will vigorously pursue all available legal remedies to defend and protect Justin against these allegations."