Gang members in one of Colombia's most violent cities face an ultimatum: give up guns or give up sex. In what is being called a "strike of crossed legs", supported by the Pereira mayor's office, the wives and girlfriends of gang members have said they will not have sex with their partners until they vow to give up violence.

"We want them to know that violence is not sexy," said Jennifer Bayer, 18, the girlfriend of a gang member. She and at least two dozen other women have said the sex strike will continue until their men hand over their weapons to authorities and sign up for vocational training offered by the mayor's office.