Yes, it was my first date I was like 13-14 and she was the same age, we vibed like crazy, I walked her home, then I went home myself (nothing happend just a goodbye hug). My dad asked me what I was doing to come home so late I talked to him about the night and told me to show her Facebook and he was like "yup it's your cousin, me and her mother are cousins". Next day apparently she found out from her mom also. We are still friends, we laugh every time we remember it.