A professor is being investigated by bosses at Manchester university after his secret life as a PORN STAR was revealed.

Nicholas Goddard, a respected chemical engineering lecturer at The University of Manchester, has been living a double life as an adult film actor.

Millions have watched him as ‘Old Nick’ in scores of porn movies alongside his duties as a professor.

But the divorced father-of-three, whose academic career spans almost 35 years, says he has quit the X-rated film industry after a decade.

(Image: STEVE ALLEN)

Oxford-educated Prof Goddard, 61, is believed to have started his second career following a divorce.

His family were apparently unaware of his other job, which involved him having sex with dozens of women - often wearing only a gold watch.

When approached by the M.E.N. at his home, minutes away from the university’s Oxford Road campus, Prof Goddard declined to comment but confirmed he is awaiting a decision about his future from university chiefs who have been carrying out an internal investigation.

Prof Goddard appears in a number of videos on the university’s website - and has published scores of scientific papers during his career.

Watch: Spankathon in Manchester to protest pornography laws

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He is the lead tutor on three courses, having taught chemical engineering for nearly 25 years.

He said he didn’t get paid much during his stint as an adult movie star, but did get travel expenses.

A University spokeswoman said: “We can confirm that we know about it and that he is a member of staff but we’re not making any further comment.”