I'm not sure what to do about my 2 teenage cousins (just turned 18 years old, graduating high school next week). I am having a small-ish wedding with close family and friends. These two cousins have a gf & bf, but do I have to invite them? Is there an age where the +1 becomes the norm? I met my fiance and we started dating when I was 19 and he was 18 so I feel like I can't really deny them, but I don't know their bf & gf and really wanted only people that I am very close with at the wedding.
Anyone have any similar experiences or suggestions?