I'm a rather big guy and I therefore get away with some "cheating" others can't. For instance I regularly play E with two fingers (same with Am obviously). I regularly play C7 with a G base. my Em is one finger, etc.

Anyway, I still play Rick's proper G fingering and still play the indigo girls G by fretting both B&E strings with my pinky--t'ain't as hard as it sounz.