A Westminster worker who accused Nigel Evans of sexually assaulting him in a pitch black room said senior managers at parliament could not be trusted when complaints were made about MPs, a court heard.
The plaintiff, who cannot be named for legal reasons, has been giving evidence in the trial of the former Commons deputy speaker, who denies all charges against him. They include rape, indecent assault and sexual assault involving seven men.
The alleged victim said Evans pushed him into a "pitch black" room in a kitchen off the deputy speaker's corridor after a drinking session in the House of Commons Strangers Bar in February 2011.
He told the court: "It was pitch black and then very quickly he kind of came forward and put his arms all over me and tried to kiss me. Then he took my hand and placed it on his erect penis. I felt his lips on mine at that point.
"He touched my crotch, he touched my bum over the top of my clothing. I remember him saying something like 'you're gorgeous'. I didn't say anything because I was in shock."
Later he told the jury: "Then I gathered my senses. I was aware of what was happening and pushed him off."
The man said that Evans approached him a few days later to ask if he was all right.
He told the jury: "Because of how much I liked Nigel I decided to convince myself it was a one-off and on the night he got carried away. He went way over the line but it was a one-off."
"People [working] in parliament don't have confidence in reporting anything about MPs.
"Parliament as an institution and MPs are more concerned about how things appear than what actually happens."
The trial continues.