Rolling Over

Gabe has been rolling from his tummy to his back since he was about a month old but only one way. On Monday, October 8th he starting rolling the other way too and we were really excited.
Well I got much more excited when on Tuesday he rolled from his back to his tummy. He was just laying on his playmat and PopPop yelled for me to look and he did it on the first try. The hard part was getting his arm out from under him once he got over. Well he did it again for me later that day on the bed. When Daddy got home he wouldn't and then not yesterday either. Well finally this morning Gabe woke up early (5:30) and ate then Daddy took him out in the living room and put him on the floor and he did it for him, about 5 or 6 times. I finally caught the entire thing on video the very last time so he was grunting and groaning big time, I guess he was pretty worn out.
Well my son is a genius, only 3 1/2 months old and rolling over, what a big boy!!