Popular actress Grazulli Massafera, 35, was seen in the intimate clinch with the man in a field in an unknown part of Brazil.
A picture of the pair was uploaded onto social media by photographer Marcelo Belarmino, who claims he was looking for birds when he stumbled across the couple.
The incident sparked controversy among fans of the Brazilian telenovela star, not least because she is famously married to a fellow actor.
But the incident turned out to be staged for a new TV show that she is currently filming.
The pictures were snapped on the set of The Other Side of Paradise, a new series also starring actor Rafael Cardoso, 31.
He was found to be the ‘mystery man’ that had fascinated followers of the actress.
But even though the scandal erupted online, her loyal fans were quick to comment on how good she looked in the offending pictures.
They flooded the images with comments, calling the star ‘Beautiful’, ‘Divine’, ‘Perfect’, and ‘The prettiest.’
Ms Massafera is married to Caua Reymond, 37, with whom she shares a five-year-old daughter called Sophia.
She rose to fame after being placed third in the 2004 Miss Brasil beauty pageant.
Since then, she has become a household name through her work starring in telenovela shows.
She has also appeared on reality TV shows and in 2005 was a participant on Big Brother Brazil.