My fiance's brother and his girlfriend are getting married 4 months after us. Their uncles want to throw a party for the four of us so that family friends can meet us. It isn't a shower or an engagement party, but a get-together. There are folks who will be invited to their wedding and not ours and vice versa. What's the etiquette here? I know that anyone invited to pre-wedding parties/events must be invited to the wedding. Everyone invited to this party will be invited to the wedding - just not necessarily both weddings. Thoughts?