A US politician known for being extremely vocal about his anti-LGBTI stance and conservative Christian views has resigned after being busted having sex with another man in his office.

Wes Goodman, the Republican politician from Ohio, resigned last week after it was revealed that he had been caught engaging in “inappropriate behaviour” of a sexual nature with another man.

The man Mr Goodman was caught having sex with was reportedly not one of his employees.

The right-wing politician, 33, is married to a woman who is the assistant director of an annual anti-abortion rally known as March for Life and he frequently states that “natural marriage” — or heterosexual marriage — is the only true marital option, according to The Independent.

The incident was confirmed by Ohio House Speaker, Cliff Rosenberger, who said in a statement that he was “alerted to details regarding [Goodman’s] involvement in inappropriate behaviour related to his state office.”

“I met with him later in the day where he acknowledged and confirmed the allegations. It became clear that his resignation was the most appropriate course of action for him, his family, the constituents of the 87th House District and this institution,” Mr Rosenberger said.

Mr Goodman’s Twitter account, on which he previously described himself as “Christian. American. Conservative. Republican. Husband to @Beth1027”, has been locked and his campaign website taken down.

He is known for his push on traditional “family values” and addressed the issue of his resignation by stating he “regretted his actions”.

“We all bring our own struggles and our own trials into public life,” Mr Goodman said in a statement. “That has been true for me, and I sincerely regret that my actions and choices have kept me from serving my constituents and our state in a way that reflects the best ideals of public service.

“For those whom I have let down, I’m sorry. As I move onto the next chapter of my life, I sincerely ask for privacy for myself, my family, and my friends.”