...to think there is something wrong with DS?

[AutumnSky123]

DS is 7 y/o and I'm seriously concerned... I've been called into his school, many times, due to him using sexually explicit language and it's incredibly embarrassing/concerning - I have no idea how he knows about the stuff he is saying. I've heard him saying such things to our cat/his teddies too and I have no idea how to deal with it :(

You can speak to your GP on the phone and get a Camhs referral without needing to take your DS to the surgery (personal experience). Good luck

Bribing a child for good behaviour is going to inevitably lead to a badly behaved child.
If your mother is bribing him because she can't cope with his normal behaviour then you need to stop using your mother as childcare. She is not doing him a favour by bribing him.
If he's not socialising with older children or watching stuff at your house, he must be picking it up at your mother's. You need to face that fact.

Your son is probably very aware that he's the naughty and unpopular child at school. He can change that with support (and maybe a change of school) He's caught in a vicious cycle and needs help getting out of it.

Your son is not the first child to say something shocking to get the attention from people but needs protecting from the source of this because what he's saying is not normal for a child who allegedly doesn't have access to it on the Internet or from an older child.

AutumnSky, you need to address your inability to trust a potential childminder (and presumably others outside your family circle) as a matter of great urgency. It is well worth pondering as a PP has posted whether your fear of others has been transmitted to your son.

You need to prioritise your son's welfare ahead of your mum and dad's feelings.

I would be concerned about the iPad he is using. If it is not his, when he goes on YouTube all the suggested posts may not be age appropriate.

Excuse me, but childminders are registered by OFSTED. They are professional people who are qualified to look after children in our society. If you don't trust them, then that is something you need to really think seriously about. You can't go through life not trusting people in authority - that is actually not a feasible way to live your life. And I say this as someone who rebels against authority at any given opportunity, ha. But at a very basic level if I was struggling I know they are there to help and support.

I find it very worrying that you don't trust professionals to help you out. You don't trust childminders and you won't get your son to a doctor because he will have a tantrum and bite you. That's not ok. Look very carefully at your own behaviour.

You are important too. You must fix your own shit before you can help your son. Healthy mother = healthy son.

Kawliga I agree.

Get that iPad asap