I was amazed , considering these are people that have no problems calling the father of the groom 's live in girlfriend a " slut " at the RECEPTION . But they decided to mingle with us heathens . THey also did n't want their kids to play with our kids , but , and this is the beauty of kids , kids are n't real concerned about the moral purity of some other kid 's parents . All they care about is , well , in this case , swings , balls , sandboxes , and that cool bug that 's crawling around the table .

Question: What type of event is the narrator attending ?
Answer: They are at a girlfriend 's birthday party .They are at a nuptial ceremony .They are at an anniversary .They are at a birthday .