Ladies: before you answer an ad from a man begging you to kick him in the groin,read this first.

Cops say convicted sex offender Brandon James Clifford has placed Craigslist ads in several cities including Portland, Salt Lake City, Richmond and Boston, offering women money if they will repeatedly "kick him in the groin," according to KOMO.

The ads, which don't appear to be up any longer, said Clifford was looking for women with strong legs, such as soccer players or kick boxers. The ad claimed he wanted help teaching women self-defense classes, but police say he was out for sexual gratification.

Clifford got at least five women to answer his ads, but one of them said she got suspicious when Clifford asked if she would be able to kick him hard enough to "send him to the ground, because anyone who does is paid higher." She called police after a Google search turned up his criminal past.