WATCH: Geeky, Adorable Gay Marriage Proposal at GaymerX Convention

More than 2,000 fans gathered in San Francisco this weekend for GaymerX, the first convention dedicated to LGBT gamers and queer geek culture.

One of the convention's most memorable moments occurred when Ellen McLain, who voices the character GLaDOS in the popular video game Portal, sang the song "Still Alive" (also from Portal) and used the song to help an attendee propose to his boyfriend.

Watch the adorable gaymer surprise his boyfriend by popping the question in a wonderfully creative way in the video below. (To catch the beginning of the surprise proposal, skip to the 3:24 mark.)