Now it has emerged that five months after the 2012 threesome, the star got in touch with a hairdresser on a dating app using a false name.
The stylist claimed that PJS once asked to meet while in North America.
The hairdresser added that PJS initially denied being famous but later admitted he was, saying: "Keep it a secret."
The lover said: "I didn't mention the spouse because it wasn't my place...
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"PJS made it seem like they had an open relationship. PJS didn't seem to care about us being seen. I don't think the partner found out about us."
PJS and his spouse claim the injunction is needed to protect their children from harm.
But the hairdresser said: "When you see the couple in the media they give this illusion of a perfect family with children. What I am seeing and reading now is really disgusting. It upsets me a lot."
Last night PJS's spokesman did not respond to requests for comment.