John Travolta is now being sued by former pilot Douglas Gotterba in the latest round of sexual affair allegations about the Hollywood movie actor.

The suit comes after Gotterba previously claimed in a September interview to have had an affair with Travolta during his six years as the star’s private pilot in the 1980s.

Gotterba said he first met the Grease icon in February 1981 when he was interviewed for a pilot job with the star – and by September they were lovers.

According to Gotterba, Marty Singer, Travolta’s attorney, has now threatened to sue him for breaching a confidentiality agreement that Gotterba allegedly signed as part of a termination of employment document.

Gotterba’s admits signing the termination agreement, but says it did not include a confidentiality clause, which would have legally prevented him from talking to the media about the star.

In response, Singer told TMZ: “We plan to get this meritless case promptly dismissed”.

This is the fourth lawsuit against the actor star this year.

In May, two masseurs — known to the public as John Doe #1 and John Doe #2 — and a cruise worker named Fabian Zanzi, sued Travolta over accusations of improper sexual behaviour.

Those suits were subsequently dropped. In the case of John Doe #1, it was unequivocally established that on the day of the alleged sex attack, Travolta was in another location entirely.

The second massage therapist later withdrew his suit.

Fabian Zanzi’s case was also dropped.