Her mother, 39-year-old Traci Young, initially pleaded guilty in the case then withdrew the plea. She will stand trial later this month.
The women had advertised themselves on Craigslist as a sexy mother-daughter team.
Smith's attorney, Dennis Turner, says the two were trying to feed their drug habit by selling their bodies.
An undercover officer responded to one of the ads and the pair was arrested Oct. 2.
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