I only ever see one at a time. Sometimes I wonder if there are actually two in there. I bought a 1.1 pair a few months ago, but they don't come out of hiding all that much. She was doing this for about 4 minutes, before I scared her.
Figures. I walk downstairs and see them both hanging out in the corner by a film canister. My tanks are in the basement, and during the winter I didn't see much activity. Maybe the temperatures were too low, and now that its a balmy 69-70 down there, they are out more often. Hopefully it was laying and not just poopin'.