DS's pal who is 2 years older sticks to him like glue. Example: they both come into kitchen. DS will sort out a drink for them and will go to fridge, sink, cupboard and friend will follow him at close proximity whilst he does this rather than just standing in one spot. And by close proximity I mean almost touching, to the point that DS almost has to elbow him out the way to get access to the fridge. When they sit down on sofa, friend will almost sit on top of DS. If DS sits on a chair rather than sofa, friend will sit on arm of chair. If DS goes to toilet, friend will follow him and I'm sure would actually try to go into toilet with him if DS didn't lock the door. Friend will then wait outside door until DS is finished. He comes to door for DS and if DS isn't ready or not free rather than just buggering off he will stand and hold a conversation with him even when it's obvious it's not a good time.