Up until the last few weeks DP and I were feeling rather smug that DS1 (2.10) has so far not shown any real jealousy or negativity towards DS2 (10mths). So, just to show us how wrong we were DS1 has started to be quite violent towards his little brother and I'm not dealing with it in a very constructive way AT ALL.
The main trigger points seem to be when DS2 is being fed or cuddled, which is obvious really, but also if he cries DS1 seems to want to hurt him even more and will grab him and scratch him etc. If DS2 is sitting on my lap DS1 will run up full pelt and body slam him (given the chance obviusly now I get him out the way!).
At first I thought that DS1 was just being over-zealous. He enjoys physical play and we do have a lot of rough and tumle games so I thought he was just getting a bit confused as to what was appropriate, but I'm fairly convinced now that it's more often done with spite. He is not afraid to openly hurt DS2 in full view and I know that part of this is attention seeking behaviour.
Just to make matter worse, DS2 has now worked out that his big brother is out to get him so everytime DS1 is in close proximity he screams and cries!
I did read Silblings without Rivalry when I was pregnant but the theory is escaping me when in the midst of a day full of battles.
Any advice gratefully recieved. At the moment I feel like I end up shouting a bit too much.