TAMPA — One day last summer in a house containing drugs and guns, Kimberly Noelle Collera's handcuffs were momentarily unlocked by police so she could sign a paper.

She didn't grab for a gun.

She grabbed for euphoria.

"If I'm going back to prison, I'll at least get high before I go," she reportedly said after swallowing a handful of a drug known on the street as Molly, which increases the activity of neurotransmitters in the brain.

Collera, 23, signed a federal plea agreement, filed Wednesday, in which she admits to that conduct, along with having a gun in furtherance of a drug trafficking crime. The charge is punishable by five years to life in prison.

The arrest came as part of a joint FBI and Tampa Police Department investigation of the Latin Kings street gang.

According to the plea agreement, there were other adults in the Walnut Street house when authorities arrived, but Collera announced, "I'm the only one doing illegal activity here. Everything is mine."