http://thescotsman.scotsman.com/index.cfm?id=2247552005 Thirty years for woman who had sex parties with schoolboys RHIANNON EDWARD AN AMERICAN woman who had sex with high-school boys during parties fuelled by alcohol and drugs has been sentenced to 30 years in prison. Silvia Johnson, 41, of Arvada, Colorado, described herself to investigators as a "cool mom", who "was never popular with classmates in high school", and who was beginning to feel like one of the group. She pleaded guilty in July to two misdemeanour counts of sexual assault and nine felony counts of contributing to the delinquency of a minor. She was also sentenced for additional charges of third-degree assault, violation of a restraining order and harassment for unrelated cases involving her husband and children. Johnson could be eligible for parole in about ten years. Authorities said Johnson held parties for the boys almost weekly between October 2003 and October 2004, during which she provided drugs and alcohol to eight boys and had sex with five of them. The prosecution described her as "perverse" and "a manipulator". However, a defence expert pointed to Johnson's history of mental problems. Peter Weir, the judge, said that while he sympathised with her mental problems, they did not excuse what she did. Johnson said: "I'm very sorry for what I've done. You know it was a year ago that some of that arrogance and nonsense did exist, but it doesn't anymore. "I've learned my lessons. I know I've hurt so many people. Not just the boys, but my own family. I've let down myself, my community, just everybody, and I know that I have a serious mental illness." In a police interview, Johnson admitted inviting underage students to her home for the parties because she wanted her daughter's friends to think of her as a "the cool mom". In the interview she said: "I fell in love with being a part of the group in a way, because that was never something I was a part of growing up." Johnson also said she resented what she described as a double standard for men and women. "I think what I always had a hard time with is, guys who do it are considered studs," she said. "A girl does it, she's considered a slut."