www.tmz.com - The former child prostitute who claimed she was forced to engage in sexual activity with Lawrence Taylor wants payback -- and now she's teaming up with Gloria Allred to sue the pants off the NFL Hall of Famer.

18-year-old Christina Fierro was 16 at the time she met up with Taylor in a Holiday Inn outside NYC back in 2010. Fierro claims she was forced into the encounter by a violent pimp.

Taylor insisted he never raped Fierro -- claiming he simply masturbated into a condom. Taylor was eventually convicted of one count of patronizing a prostitute and one count of sexual misconduct.

Fierro and Allred are all set to hold a news conference before the lawsuit is filed (surprise, surprise).