We have some good friends we've known for years and get on really well with, they're really easy going like us, we have the same humour and can have a really good laugh as we don't take ourselves too seriously and can joke and banter.
However they have some other friends well call x&x who are really nice people but are very straight laced and serious and don't like to joke and banter so when they are there we have to be careful what we say because they're easily offended and don't swear or anything and I feel it really changes the ambience of the evening.
Our friends have invited us over this weekend and we've accepted, however I've seen friend this morning and she said they are really looking forward to seeing us this weekend and so are x&x who are coming too, to be honest my heart sank a bit as it won't be the fun evening I was expecting because I hadn't realised they'd be there and dh isn't bothered about going either now, I don't dislike them, they just aren't our sort of people, they're much more formal than we like to be.
Would it be really bad if we declined and said we'd prefer to see them when they aren't with x&x or is that just something you don't say?