I was camping at a small lake with my family and it was a super hot day out. We decided to go swimming to cool down and I went to go put my bikini on. When I was finished changing, my family still wasn't ready so I went outside to where my dog was tied up. Some people walked by so I said "Hi". They gave me a weird look so I went inside and my Dad started laughing. He asked, "Where are your bottoms?" I looked down and I realized that I still had my underwear on!!!