Cole has not shown he is jealous of Kyle except when Brian is playing with Kyle. But then again Cole gets jealous if Brian is showing anyone attention other then him.
It is getting harder to keep Cole away from Kyle now that Kyle is laying on the floor playing more. We have lots of baby gates around the house for Cole. Cole is still learning how BIG he is and where his feet are. I think that as Kyle gets older him and Cole will be best friends.
Here are some cute pictures of Kyle and Cole.