Was it just a snog or something more?

Twilight hunk Robert Pattinson made Kristen Stewart, 22, grovel for two months after she was pictured kissing Snow White & The Huntsman director Rupert Sanders, 41, in July.

But last month, he invited her to Reese Witherspoon‘s California ranch to talk about a reunion.

During their meeting, Kristen insisted she hadn’t slept with the dad of two – who’s trying to salvage his marriage to model Liberty Ross – reiterating that it was a ‘momentary indiscretion’.

Although Rob, 26, wants to believe Kristen, his pals say ‘he’d be crazy to’.

‘The pics of her and Rupert were passionate beyond belief,’ says a source.

‘It’s hard to imagine she didn’t take things further than kissing.

Rob feels humiliated and wants proof Kristen didn’t sleep with Rupert – so although it sounds extreme, he’s asked her to take a lie-detector test.

Kristen isn’t happy about it.

‘She hasn’t decided yet, but she knows she’s got a lot to make up for.’

Read the full story about Robert Pattinson and Kristen Stewart in Now magazine dated 29 October 2012 – out now! 

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