Boyfriends kink

I think it's balloons.
Or custard, one of those two for sure.

I'd tell him you found it very unsexy and actually boring. That's a way of closing the door without the possibility of him thinking he can talk you round.

Its being pegged isnt it?

As usual 1st 11th post nails it!

Omg op, what's the kink?

Throw him back.
And no, you are in no way responsible for him maybe thinking that you are up for his kink.
Like all line steppers, he is taking your politeness for you being a fool.
But the fact is, he has the type of character where he thinks he has the right to wear you down into compliance.
Hence why you have to throw him back. You saying directly that you are not into what he is will only be a challenge to him if you keep proximity to him. I hope you understand that.
So no placating and letting things hinge on him respecting your boundaries.
As for "kink shaming".....that is a load of bollocks. No stigma means no effing kink.
Don't let this zeitgeist or your kinky friend fool you.

If his sexual preferences aren't your thing then don't get involved again. All the bollocks about I hate myself is so you feel bad for him. He needs to find a person who enjoys what he enjoys

Where are you on this spectrum, OP,:

1. This is illegal/abusive

2. I don't like this, and you being into it is giving me the ick

3. I don't like this, I don't care that other people do, but bringing it into our bedroom is giving me the ick

4. it's not my thing but I'll do it (occasionally) because my partner loves it

5. it's not really my thing, but it's not a big deal and my partner loves it so we can do it whenever.

If you're on a 2-3 but he's saying "I'm a weirdo," and you reply "I'm not judging" he may interpret that conversation as "lots of women would have a problem with this, but OP seems OK with it"

You both need to be clear on where you stand

It's fine to tell him that he's misconstrued your comment and that you're just not into whatever it is, no judgement! If you think you're incompatible because of this, you should end it now and not drag it out.

Hey Friend
a bit awkward, but I wanted you to know that -insert link here- isn’t my thing at all. I didn’t want you to feel bad and put yourself down about it when you first told me, as it’s up to you what you like and no harm is being done so each to their own. However this didn’t mean it was something I’d like to hear about or be involved in. No big deal though, just wanted to clear this up.
Speak soon… etc.

I think you need to work on your boundary setting before entering into a relationship ad you could easily end up in a situation where you're doing things you don't want to do.

If it’s not your thing then he’s not the one for you either for something casual or serious

just say to him you are not wanting anything at the moment - I wouldn’t really embarrass him or that but you could say you are on different wavelengths

Just tell him that there's a miscommunication and you're not interested.

If it’s not your thing you need to tell him really straight you’re not into it, it’s not fair to let him think you’re up for whatever it is he has in mind.

Urgh he’s a boundary pusher. Absolute creep. Throw him back.