The Andrews government wants the Parliament to punish two religious Liberal MPs, alleging they willfully misled and deceived their colleagues over the notorious Good Friday pairing affair.

Two months after the controversial move, Labor is also going after three senior members of the Liberals' upper house team accusing them of conspiring with MPs Bernie Finn and Craig Ondarchie to renege on their word to not vote on the government's politically charged fire services reform bill.

Bernie Finn, member for the Western Metropolitan Region. Credit:Darrian Traynor

The pairing system allowed MPs who could not attend Parliament for genuine reasons to be matched with a member from the opposing side to preserve the balance of numbers when voting on a bill.

Mr Finn and Mr Ondarchie enraged government MPs and Greens crossbenchers when they asked for pairs so they could observe the Good Friday religious holiday, only to return at the last minute to vote down the fire services bill.