argentinian con-artist sofia davila posted raunchy pictures or herself online and flirted with unsuspecting men she had contacted on the social network , suggesting they meet up for sex .
but after meeting her victims , the 21-year-old from buenos aires , would spike their drinks and wait for them to fall unconscious , before ransacking their homes .
buenos aires thief sofia davila , 21 , would start chatting to men over facebook before suggesting that they meet up .
when they did , she would spike their drinks and rob their homes after they fell unconscious .