Is this appropriate touch?

Tl;dr: Is this appropriate touch? Boyfriend putting in lap and rubbing a mutual girl friend thigh

Is this appropriate touch?

I’m wondering peoples opinions!

My (25F) boyfriend (29M) when drunk, come over to me and a a mutual girl friend and asked to sit down, she stood up to move over and he put her on his lap and was rubbing the top of her thigh for a good few minutes

I know for myself this crosses a boundary and am planning to speak to him as for me that type of touch is reserved for intimate partner if youre in a relationship –
I have spoken briefly and he explained he would touch anyone like that even his guy mates, but I’ve known him two years in a friendship capacity and I’ve never seen him do that to male friends

wondering other people’s opinions if their partner did the same in front of them