To mark World AIDS Day on December 1, and to raise money for the Sussex Beacon, a local HIV/AIDS charity, Simon Kirby, is auctioning a copy of the Marriage (Same Sex Couples) Act 2013 signed by the three main party leaders, David Cameron, Ed Miliband, and Nick Clegg. Simon is the MP for Brighton Kemptown & Peacehaven and vice chair of the parliamentary group on HIV/AIDS.