Kristen Stewart is to be invited to Robert Pattinson's wedding.

The 'Water for Elephants' star is reportedly keen on inviting his ex-girlfriend to his and FKA Twigs' upcoming nuptials.

A source said: ''Robert has been giving serious thought into inviting Kristen to his wedding.

''They shared so much of their lives together, and both came to huge prominence at the same time with one another thanks to the 'Twilight' movies, so they'll always have something in common.''

The former couple split in 2013, just eight months after Kristen admitted to cheating on the 28-year-old actor with 'Snow White and the Huntsman' director Rupert Sanders but the insider claims there is no ''bad blood'' between the pair now.

They added: ''For Rob now, there's no bad blood. He's moved on, and so has Kristen. It is time to look forward to the future.''

And whilst Robert is happy to invite Kristen to the wedding, his fiancée isn't so sure why he wants to put the 25-year-old actress on the guest list.

Another source told HollywoodLife.com: ''Twigs isn't sure why he would consider inviting Kristen to their wedding - considering the circumstances of their split. She would find it difficult to invite someone who had cheated on her because she wouldn't really want to know that person anymore.

''But she's not against the idea of inviting Kristen. She just thinks it's a little strange he would want her there for their special day after she hurt him so badly.''