Bill Clinton's Porn Stars -- Ex-Prez ASKED to Meet Us

Bill Clinton personally asked his Secret Service detail to introduce him to the 2 porn stars he posed with yesterday at a Monaco gala event -- at least according to the busty ladies themselves.

Tasha Reign and Brooklyn Lee called in to TMZ Live moments ago, claiming they initially approached Bill to take a picture with him at the "Nights in Monaco" gala in Monte Carlo last night -- but Bill's Secret Service guard brushed them off.

We're told Bill then caught the girls out of the corner of his eye -- and ordered the SS to bring the girls back, at which point he posed for the infamous photo.