A Monrovia man pleaded guilty Thursday to using Internet websites like MySpace to lure teenage girls into having sex with him.
Gregory Serrano, 34, pleaded guilty to 20 sex charges involving three teenagers between the ages of 14 and 17.
Prosecutors say Serrano found the teen girls on MySpace and other Web sites, where he posed as a 19-year-old.
He then allegedly phoned them and sent text messages to them to arrange for them to come to his home and have sex.
Serrano has a pending federal cause involving child porn and other charges involving more victims.
He is scheduled for sentencing July 6, and faces up to 20 years in prison.