A sourced told the publication: "They had an affair many years ago, even though it was something they tried to deny, and the spark has never gone out between them."
The National Enquirer alleges that the Horrible Bosses star, 49, and the Pirates Of The Carribean dreamboat engage in a serious flirt fest whenever they cross paths, however, they have never taken it further because "the timing was never right", sources said.
Both Jen and Orlando have been married before; Aniston was married to Brad Pitt from 2000 - to 2005 and then Justin Theroux from 2015 to 2017, while Orlando divorced Vicotria's Secret Angel Miranda Kerr in 2003.
Despite Aniston being a double divorcee and Bloom dating a string of women - including his on-again-off-again girlfriend Katy Perry - sources say the Friends star could see herself with the handsome Bloom, according to the National Enquirer.
A source told the publication: "Jen always says she could see herself with Orlando if the opportunity ever presented itself."
As for whether Orlando is keen on a romance with Jen? Insiders allege to the National Enquirer that the feelings of attraction are very mutual.
"Orlando's been in love with Jen since Friends,
"If he was free, he wouldn't hesitate to dive into a relationship with her!"
The insider tells the publication that Jen isn't out to steal Katy's man, but insists: "Everybody thinks they would make a great couple".
