Is this signs of grooming creepy uncle

He sounds like a pervert. Don’t make excuses or feel you have to be polite - these are your children and they have only you to protect them.

He’s your exes brother, not yours. Better cut him out unnecessarily than let your guard down and have your kids abused by him. Cut him out. Now - he’s already done more than enough to justify it.

The uncles behaviour is designed to confuse you OP. These types are careful to make sure they have a plausible explanation for everything they do, they ramp things up carefully when they can see that you are prepared to tolerate things. The fact that you have tolerated it makes you feel as if you are complicit and this makes it hard for you to complain.

This sounds like grooming and I would make a Sarah’s Law application

sorry you feel attacked. I didn’t mean for you to feel that way but I think it is “odd” to allow your children to visit a character such as a “creepy uncle”

Is there a way of reporting concerns about what things he might be watching / viewing? I have a feeling there is a way to report or raise suspicions about potential abusers anonymously. From a safeguarding perspective this could protect not only your children but others (inc his older niece) too.

You're a pushover? You hate conflict? So, because of that, you allow your children to potentially be abused and abused in plain sight? Get a grip, Op. These are your children, your job is to protect them. An adult bit your child on the face and you continue to see him? Most people would have gone ballistic over that and then nc after that. I can't believe the amount of weak mothers who are come on here asking strangers if the most abusive behaviour is normal /acceptable and can't put their children first.

My kids would never go near him and I'd tell all the family that.
If creepy uncle is at any occasion don't attend and let family know why. Don't pander to it jeez

What does grandma say about his behaviour?

You and your ex’s family sound really odd.

saying that, always follow your intuition.

I have no wish to make you feel bad. But seriously, read your OP. This man should not be around your children.

Protect your children and empower them to protect their boundaries.

I would say listen to your gut feeling. What does it tell you. If you're feeling strong warning signs then listen to it.

Never mind what his intentions are or whether he is grooming your DC. Why on earth would you allow him to be around them knowing even half of what you know?

Woman up and get him out of their lives as of now.

Sometimes it is hard to tell what someone’s intentions are
This is exactly the intention of the groomer, they are stealth predators.

Am shocked you need to ask tbh.

Keep your kids safe ffs.

The biting should have been reported to the police. Wtf wasn't it?

You want to confront him?
I would want to beat the living daylights out of him 🤬
(Obviously I wouldn't)

Theres no way I'd have my kids around someone like that, even if he doesn't have bad intentions, he has no respect or care for personal boundaries by trying to force children to be physically close to him when they don't want to be. Keep him away.

I know this is too late, but you should have reported to the police after the biting.

This is blatantly not right and I agree with the above poster that says you've also been groomed into thinking his behavior is acceptable. My dc wouldn't be going anywhere near this man in any capacity, even If i was with them. Just the bite to the cheek alone would be enough to make sure he never had access again, let alone all the other very inappropriate and overly sexual behavior. If the grandma wants to see your dc she should come to you, without him. I honestly cannot believe you need to question this, I'm sure your guy tells you it's all wrong.

Why are you even asking this OP? Of course he does not get to have ANY access to your DC. i cannot understand why you are persisting with any relationship with this creep and assaulter of your DC. You are the only protection your DC have, so you need to woman up and find your inner tigress. Get the grandmother to come to you, if you want to see her, but she comes without her son. He does NOT have to see or have any contact with your DC, and you don't need to explain either.

He has already committed a criminal offence by showing porn to young children.
Given that and the rest his behaviour you really shouldn't be allowing him any contact with your children.