WIBTA if I invite my friend to a destination wedding

I (25F) have a friend who has a destination wedding coming up and my cousin and I were planning on going on a trip in the same year. To save on money I was wondering if I would be an asshole for inviting my cousin on this trip. It’s a week long trip, my friend and cousin know each other (but not close enough to get a wedding invite - also weddings are expensive so it’s a small list).

I know my friend is super nice and probably wouldn’t care if I asked but I’m nervous about coming across entitled for even asking. Is it ignorant of me to ask? I’m not bringing my cousin to the reception or trying to insinuate that in any way but it’ll be nice to have someone there (my cousin) to hangout with because I won’t know too many people. Otherwise I would be travelling alone…

Thoughts?

ETA: Thank you for all the replies! I feel better/less guilty about asking. And I’ll make sure to phrase it in such a way that ensures I’m not looking for a plus one nor will I let it affect any activities going on. :)