I'm sure Nick relating to Lester, a guy who has pedophilic fantasies about his daughters friend is just coincidental.

I'm being sarcastic, but I don't actually think Nick is a nonce.
I think he's just reached a point where his thought process is so compromised by cognitive damage from being a fucking drunken crack smoking hedonist, combined with how bitter he is about his creepy cuck "qover" being blown the fuck apart because of his inability to keep his shit together publically enough to stop people from worrying about his clearly neglected kids and physical transformation into a cocaine Sith, that he no longer realizes or cares that the optics of publically interacting with and paypigging avowed open pedophiles when he is being investigated by CPS, are fucking terrible, and his need for online attention making him constantly seeth and sperg and "correcT the reCord" is only hurting him.
I don't believe Nick is a chomo. I just think he is a man with absolutely no morals that has no problem in associating with pedophiles if he can get them to annoy people he hates.
Nick is an amoral degenerate whose narcissistic injury has destabilised what little sense he ever had, he just wants to lash out at the source of that injury, and like all narcs, can't even imagine that his situation is entirely the result of his own actions.