A 25-year-old Chattanooga man is facing charges after police said he had group sex with his 17-year-old girlfriend and her 17-year-old friends.

Diego Eloim Munguia, of 4610 Plaza Hills Lane, Hixson, is charged with four counts of statutory rape.

Police said the girlfriend's mother said she found out her daughter and Munguia had been having sex since last year.

She said she found nude photos of the girl and Munguia on the girl's cell phone and questioned her. She said the girl admitted she was sexually active.

The mother said Munguia would have the girl bring her 17-year-old friends from school over for group sex.

Police viewed the cell phone, which showed the girl having sex with Munguia in a room with a free-standing dark-colored, wooden, oval-shaped mirror in the background. Camouflage and military clothing and gear can be seen in the room piled on the floor.

Various topless photos of the victim were found on the phone as she embraced Munguia. There were also other nude photos of the girl, other nude girls, unknown male and female having sex and a photograph of an unknown penis.

The girl admitted having sex with Munguia on four occasions. She said she stayed with him at his apartment for the last two weeks.

Other apartment residents identified the mirror and setting in the sex video and said they saw the couple having sex in the living room floor of the apartment.