British Prime Minister David Cameron is being urged to pink slip David Malliff after he linked gay marriage to bestiality, the Evening Standard reported.

Last week, Cameron defended his decision to back gay marriage during a Conservative Party conference.

“And to anyone who has reservations, I say: Yes, it's about equality, but it's also about something else: commitment. Conservatives believe in the ties that bind us; that society is stronger when we make vows to each other and support each other. So I don't support gay marriage despite being a Conservative. I support gay marriage because I'm a Conservative,” Cameron told attendees.

In response, Malliff, a senior counselor in the Conservative Party, tweeted to his 30 followers: “There is no doubt the PM is wrong on this issue. We may as well legalize marriage with animals, crude I concede but no apology.”

Labour MP Clive Betts called the comment “sick.”

“If James Malliff doesn't resign immediately as a cabinet member and a councilor, David Cameron must sack him,” Betts said.

Malliff deleted the message and told local media that he simply had a difference of opinion.

“I respect the rights of people to hold different views to my own. It was not an anti-gay statement, more a comment about where we draw the line,” he said.