It was very bizzare, but just after I posted here this morning, my cousin came over with her daughter (Tahlia) who is two weeks older than Aidyn. She has been sitting very well for some time now, and for the first time Aidyn sat up without me needing to catch him for at least 10 mins!! I was amazed!! Maybe it was because Tahlia was doing it, or maybe it was just because he had a reason to want to try harder, cause if he could sit up with her it meant he could talk to her and grab at her, LOL!