CLARKSBURG, W.Va. (October 10, 2012)—Carissa Hads, 25, of Quincy, Mass., who authorities say posed as a teenage boy to prey on a West Virginia girl, could face up to 30 years in prison after pleading guilty Wednesday.

Hads pleaded guilty in a Clarksburg, W. Va. courtroom to a federal charge of traveling across state lines with the intention of having sex with a minor.

Investigators say Hads pretended to be an 18-year-old boy on MySpace and started a relationship with the teenage victim in 2010.

Authorities say they communicated for more than a year before their first in-person meeting.

A State Police investigator says Hads wore a back brace to cover her chest.

She visited the 15-year-old at least three times, the investigator said.

The criminal complaint says Hads had one sexual encounter with the girl, but did not undress.