Moreno Valley Police officers responded to an anonymous report of a possible double sexual assault near the area of Alessandro Boulevard and the Old 215 Freeway at 11 p.m. Saturday.
Officers arrived and located Watkins, according to the department. Watkins, a transient, claimed to live in a tent near the location.
Watkins is a registered sex offender and is currently on parole.
After conducting interviews at the scene, police arrested Watkins on suspicion of sexually assaulting to juvenile females.
Watkins was booked at the Robert Pressley Detention Center.
Anyone with information related to the case should contact the Moreno Valley Police Department Detective Bureau at (951) 247-8700 or (951) 486-6819.