When i was a teenager i stayed a few days at my cousins house. She's 2 years younger than me. I'm a man by the way. We were returning to her home when she decided to talk to one of her friends who was also her neighbour. When i walked inside there were three girls around 13-16 in panties or shorts and tops because it was summer. I felt like was really intruding and only my cousin seems to be not embarrassed by the situation.