I am unsure how normal lying is at the age of 12. Of course I know most people will tell little white lies here and there, and children/ teenagers often do lie.
However, my DP son seems to lie continously, and has done for the time I have known him (3 years). It seems to be an ongoing issue and has been for a number of years.
There are the obvious lies, for example; changing a story when he knows he might get in trouble, withholding truths, and saying one things to his mum and another thing to his dad. He also exaggerates events he tells.
However, the lies that really get me is he will just fabricate a whole story in detail, that is simply not true. He does this all the time. For an example; we were all out as a family yesterday (me, DP, DD and DP's son) at a nearby beauty spot and river. I knew there were eels in the river, but only in the very deeps sections (this was told to DP's son). Anyway I am stood not too far from my partners son and he says he can see two eels in the shallow part, about a foot long and green in colour. He kept shouting that he saw them, saying there were two of them going in between the rocks. Adamantly telling his dad about them. Of course, there were no eels as I could simply see over his shoulder.
This is just one example, others will involve him doing something he has never done. Or saying someone else has done something that they simply have not. Last year he told my daughter that his dad had once met a women who was trans and didn't realise, and then when he did he punched him/her. Of course his dad was furious that he was saying such crazy things, none of which were remotely true.
Is this normal? What could be the reason he keeps continously lying? I have some ideas, but we mostly always know he is lying and will call him out, but its constant and seems compulsive. I do feel bad now, as whenever we are chatting and he starts telling me something he did at his mums or at school, I just don't really believe him.
He is likely to grow out of this? I can only imagine what his future relationships will look like of he lies like this when older.