Dylan Evans, a psychologist at the university's school of medicine, has been saddled with a two-year period of intensive monitoring and counselling after discussing the paper with a colleague.
And now his university is coming under international pressure to lift the punishment meted out to Dylan.
As part of what he says was an ongoing discussion on human uniqueness, Evans showed a copy of the fellatio paper to a female colleague in the school of medicine.
"There was not a shred of a sign of offence taken at the time. She asked for a copy of the article," New Scientist quoted Evans as saying.
A week later he got a letter informing him that he was being accused of sexual harassment.
Evans said that the whole case is "utterly bizarre".
The complainant's side of the argument is that she was "hurt and disgusted", and asked Evans to leave a copy of the paper with her as way of cutting short the meeting.
Apparently, there was more to the grievance between Evans and the complainant than the fellatio paper incident, but an independent investigation found that Evans was not guilty of sexual harassment.
The investigation stated that it was reasonable for the colleague to have been offended and that showing the paper was a joke with a sexual innuendo, but that it was not Evans' intention to cause offence.
Nevertheless, the university's president, Michael Murphy, imposed a censure, which Evans says has prevented him getting tenure.
An online petition calling on the university authorities to back down has been set up and has been signed by high-profile academics including philosopher Daniel Dennett of Tufts University in Medford, Massachusetts, and Steven Pinker of Harvard University.
Dennett called the punishment "an outrageous violation of academic freedom" and Pinker says the "absurd and shameful" judgment "runs contrary to the principle of intellectual freedom and freedom of speech, to say nothing of common sense".
The paper, which was carried out by many popular journals, had a certain prurient interest, which was only heightened by an explicit video that went with itMovie Camera.
The Irish Federation of University Teachers has written to Murphy asking him to rescind the two-year period of monitoring. (ANI)