Gurl looooves other lady's fellas!
An eye-witness claims Jen and Robert Pattinson were left at home the night the engaged actor and the actress met up at Chateau Marmont for a very flirtatious chat.
We're told it all started when KStew approached Justin, who was enjoying a drink with a pal.
"Within the first few minutes, Kristen had already begun flirting it up with Justin. The conversation must have given Justin’s friend the hint to leave them alone to chat because that is exactly what he did! During their hour-long hangout sesh, the flirtatious Kristen did not seem coy about making her intentions known to Justin."
Like us, the witness was shocked by the seXXXy exchange.
Apparently the convo consisted of lots giggles — and even touching hands! Our spy admits:
“It was kind of surprising to see, but she seemed completely relaxed.”
Okay. If this is true, it's INSANE!
Of course, we are hoping NONE of these skeezy stories are true.
But, if they are Jen and Rob best be on red alter!
They've both been cheated on before, and neither deserve to be made fools again!
[Image via Ramey Pix.]