ABCNews -- What could be better than sex with supermodel Christie Brinkley? For Peter Cook, Brinkley's soon-to-be ex-husband, the answer may just be $3,000 worth of pornography, an Internet connection that allows him to masturbate in front of an online audience and an affair with an 18-year-old woman. Now sexologists are wondering whether Cook, who testified about his sexual behavior under oath at his divorce trial yesterday in Southampton, N.Y., may be a sex addict. "Anyone who is married to Christie Brinkley and has to masturbate at all is probably a sex addict," said Doug Weiss, a licensed psychologist and the executive director of the Heart to Heart Counseling Center in Colorado. According to Weiss, who has treated hundreds of sex addicts at his...