I am a straight guy. Always have been. I do have a few gay friends and coworkers and I have always been afraid to ask about the difference between a top and a bottom. Now seriously, I do know what the biggest difference is - one is on top and the other is on the bottom. But do tops usually remain tops or do bottoms generally remain bottoms? Are there gay men who like to be both tops AND bottoms? Any serious insights by LPSGers would be appreciated.