Denise Richards "froze" when she was sexually assaulted as a teenager.
The 53-year-old actress - who is now married to Aaron Phypers but has Sami, 20, and 19-year-old Lola with ex-husband Charlie Sheen as well as adoptive daughter Eloise, 12 - is currently taking part in the tough military challenge show 'Special Forces: World's Toughest Test' and explained that she has been unable to speak out of fear at some points amid certain incidents in her life.