International trade minister Mark Garnier admitted he had asked a former assistant to buy sex toys but was approved after investigation.
A statement issued by Downing Street said there was no "evidence" that his actions "violated the expected standard of conduct ".
The investigation concluded that neither side raised an objection to the facts, but that "there is a big difference in interpretation ".
"The staff of Mr. Garnier's office are saddened by what happened," said the 10 th.
"Mr Garnier did not mean to cause pain, and he has apologized to the individual without reservation.
"On this basis, the Prime Minister believes that the line should be drawn on this issue.
"The Cabinet Office investigation was launched after the marriage in October --of-
Three Mr. Garnier.
But he strongly denied it was sexual harassment.
He claims he mentioned
Assistant Caroline Edmunson's "sugar t *" is part of a "funny conversation" based on the TV comedy Gavin & Stacey, which uses the phrase.
He said it was "good --" to have Edmund Hudson MS to buy sex toys --
He said humorously after Christmas lunch.
Mr. Garnier said he told her that he did not think it was a good idea.
Edmunson MS, who stopped working for members shortly after the 2010 incident, objected to Garnier's statement and told the Post earlier this year: "He lied.
"She told Sky News on Thursday that Mr. Garnier had written her an apology letter, and she hoped that her actions would encourage young people in Parliament who were at risk of intimidation to speak out their thoughts.
MS Edmunson said: I do feel very, very strongly that I have seen and witnessed the terrible bullying of many young people in Westminster.
"I hope that if I say it, we will find a suitable HR department and what happens to me will not happen again.
She added: "I just thought it was too easy --
I think the issue with members and Parliament is that they have tremendous power and if they decide what is going to happen, they usually find a way to achieve that.
"At the height of the Westminster harassment scandal, Garnier's actions were revealed and several Conservative and Labor MPs were suspended.
The investigation concluded that Prime Minister Theresa May had lost her long term
Damien Green, a political ally. He was-
Her actual deputy.
Because "misleading" statements about his knowledge of pornography allegations were found on his parliamentary computer.