Kristen Stewart cheated on Robert Pattinson 'throughout their relationship'?

If you thought Robert Pattinson and Kristen Stewart were about to get their happy ever after you might want to sit yourself down as the couple will be waking up to a fresh batch of rumours about the actress and her alleged cheating ways this morning.

Kristen Stewart cheated on Robert Pattinson with Taylor Lautner?

According to US OK! Magazine, that car kissing "indiscretion" with Rupert Sanders wasn't the first time Kristen has strayed and apparently she's been involved in several other on set trysts during her time with Rob.

Advertisement - Continue Reading Below

“When they first got together, she was going back and forth between Rob and her ex-boyfriend Michael Angarano,” an insider told OK! magazine.

“Eventually she did end it completely with Michael, but it went on or a lot longer than Rob ever knew."

While she did end things with her ex, it's rumoured that one of the biggest factors was that she and co-star Taylor Lautner were actually getting it on, although how they could possible have managed that right under Rob's nose we really don't know. 

Most Popular
Kristen Stewart cheated on Robert Pattinson with Taylor Lautner?

"Everyone knows about their friendship, but not very many people know how close they really got," the source continued.

"She even lied about it to Rob."

Blimey, this is all starting to sound a little bit like Twilight isn't it? Next thing we'll be hearing that both of them have grown fangs and are being pursued by some very pale looking blokes in capes.

"When she worked on Welcome to the Rileys, she had a full-on fling with one of the production assistants. Luckily the guy had a girlfriend, so he was just as paranoid as she was and they kept it pretty well hidden."

Kristen Stewart cheated on Robert Pattinson with Taylor Lautner?

We're not sure how we feel about all this, especially as Rob and Kristen were spotted earlier this week looking very cosy indeed.

What do you think about these rumours?

Comments please..

Robert Pattinson and Kristen Stewart are moving to Cornwall?

WATCH: Robert Pattinson and Kristen Stewart snuggling on a night out in LA

ERRR: Robert Pattinson whips out his power drill in Manhattan - PIC

What do you think?

Kanye West Made His Nashville Audience Sing Along to the Taylor Swift Line in "Famous"
Celebs
Share
Kanye West made his Nashville audience sing along to the Taylor Swift line in 'Famous'
Several times, apparently.
Celebs
Share
Liam Payne wanted this magician to make Zayn reappear and it's adorable
Worth a shot​
Bella Thorne and Tyler Posey are officially Instagram official
Celebs
Share
Bella Thorne and Tyler Posey are officially Instagram official
Also Charlie Puth's been tweeting about how beautiful she is​
Rob Kardashian tweets out Kylie Jenner's number over baby shower shenanigans
Celebs
Share
Rob Kardashian tweets out Kylie Jenner's number over baby shower shenanigans
Oh gahd ​
Gigi Hadid
Celebs
Share
Did Gigi Hadid throw shade at Harry Styles with this Zayn Malik Snapchat?
​More shade than a bloody brolly
Justin Bieber
Celebs
Share
Did Justin Bieber really tell his fans they 'suck'?
​Probably not, actually
Perrie Edwards and Luke Pasqualino
GIF
Celebs
Share
Perrie Edwards and Luke Pasqualino have been spotted together again
Despite those rumours they've split​
Celebs
Share
Ed Sheeran donates his red carpet suits to his local charity shop
Because he's an angel encased in human flesh
Kylie Jenner's going to court over all the fancy gifts Tyga has given her
Celebs
Share
Kylie Jenner's going to court over all the fancy gifts Tyga has given her
​Wait, what?
Kendall Jenner responds to backlash over ballerina photoshoot in cool af way
Celebs
Share
Kendall Jenner responds to backlash over ballerina photoshoot in chill af way
​Cool like a cucumber