Christine Shreeve Hubbs, 42, was booked into Santa Rita Jail for the alleged sexual assault of two boys which police said began in December 2008. Hubbs was arrested Thursday on suspicion of having sex with the underage boys since then, police said.
She began making advances on one of the boys when he was 14 and dating her daughter, also 14, officials said.
The charges include counts of oral copulation, lewd acts on a child, and exhibition of lewd material to a minor.
Hubbs allegedly sent messages and nude pictures of herself to the boys from her cell phone. After contacting the victims, she would then allegedly drive them in her black 2006 Hummer H2 to different locations in Livermore and have sex with them, police said.
She also faces charges of contributing to the delinquency of a minor; police allege she let a group of boys shoot a plastic pellet gun from her car, Livermore police Lt. Matt Sarsfield said.
Court records show Hubbs drove boys ages 9 to 14 around Livermore on June 29, hitting speeds of up to 60 mph. The boys shot Airsoft guns -- purchased for them by Hubbs -- and hit a youngster on a bicycle, according to court records, which also state that Hubbs did nothing to stop them.
That information came to police attention while they were investigating the alleged sexual assaults by Hubbs. No one was seriously injured by the plastic pellets, and Sarsfield said none of the boys in the car has come forward as a victim in the sexual assault case.
Hubbs has been married for about 20 years to her husband Timothy, a dentist, and has three children, according to her Facebook and MySpace pages. More than half of the 36 friends on MySpace have pages displaying ages 18 or younger.
Hubbs' Facebook page says she works in the dental office and that she "taxi(s) kids around after school."
Police began their investigation into sexual assault charges after receiving a tip from someone connected to Hubbs. Both victims are cooperating with the investigation, Sarsfield said. The first victim was contacted after police received the tip. The second victim came forward voluntarily a few days later, he said.
Police say Hubbs provided the victims with Visa gift cards, dinners at restaurants and video game consoles.
Hubbs hired a lawyer last week after learning of the investigation, Sarsfield said. She was arrested Thursday evening and was ordered held in Santa Rita Jail on $4.3 million bail.