A pair of sexually provocative trousers, featuring a zip directly where a male’s buttocks would meet, has been delivered to an LGBT group by a Lithuanian Member of Parliament who equates homosexuality with paedophilia.

Campaign organisation LGL said it received the item from Petras Gražulis, who came to their office to deliver a personal “present”.

The politician was accompanied by an unidentified cameraman, who filmed the LGL’s staff and premises without permission.

Members of LGL have been taking part in a European Union hate crime conference in the Lithuanian city of Vilnius – and it appears Mr Gražulis was trying to make a political statement against the event.

Mr Gražulis, a member of the Law and Order Party, is known for his extreme anti-gay views in Lithuania, equating homosexuality with paedophilia and bestiality. In May 2012, he gate-crashed an LGBT rights event attended by senior foreign officials and declared that all gay people should leave the country.

“How are homosexuals better than necrophiliacs or paedophiles?” he exclaimed. “I’m ashamed that the rotten West, coming from the European Union that is morally corrupted, propagates this to Lithuania and tells us how we should treat homosexuals. Gays should leave Lithuania, not dictate their terms to us.”

He was particularly appalled that “homosexuality is presented to the youth as a commendable phenomenon. All nations and empires fell because of this moral rottenness, Sodom and Gomorrah.”

Politicians in Lithuania have proposed banning gender confirmation treatments; same-sex couples from adopting children, and to censor displays of LGBT expression, such as Pride events.

The measures will be discussed in Parliament next month.