The first time he proposed, he was asked 'why bother'. Now, with the positive result of the same-sex marriage plebiscite, the MP asked the question again to a "yes" from his partner Ryan Bolger, who was sitting up in the gallery at the time.

The proposal followed an emotional speech by Tim Wilson during debate on a private bill to legalise same-sex marriage.

He spoke about the first time they were engaged.

"On informing one person of our news they responded: 'why bother?' At the time I fell silent and I've never had an answer to that question, but the Australian people have now answered it for me," he said in the speech.

Congratulations, Tim and Ryan.

The same-sex marriage bill has today been introduced to the House of Representatives.