Tummy Time for Ronan

Ronan is trying to roll over on his tummy. He is 3 months old now. He turns his body half way but cannot lift his head completely to roll over, as he is on the heavier side. He turns on his side and then shouts angrily as he cannot roll over. I give him a little push and lo, he shouts with glee as he reached his mini-goal. :)
Then he does mini-pushups to strengthen his little shoulders. He tries to grab the toys around him with lot of puffing and panting to reach them.