Total Recall -- The New 3 Boob'd Chick ... REVEALED!

She's once ... twice ... three times a lady.

The producers of the new "Total Recall" remake finally debuted the brand new 3-boob'd hooker ... played by Kaitlyn Leeb ... and it's hot. hot. hot.

Leeb sported her costume at Comic-Con in San Diego this weekend ... revealing the iconic double cleavage made famous in the original Arnold Schwarzenegger version ... which was originally released back in 1990.