That's inappropriate behavior. People at the beach would likely be shocked and it could cause discomfort. There might be complaints to the beach authorities who would then ask her to cover up.
One of my roommate horror stories was when my roommate would never clean up after themselves. Dirty dishes piled up in the sink for days, and the whole apartment smelled bad. It was so frustrating because I tried to talk to them about it, but they just didn't care.
My roommate horror story was when my roommate would never clean up after themselves. There were dirty dishes everywhere in the kitchen, and the living room was always a mess with their stuff scattered around. It smelled really bad too. I tried talking to them, but they just ignored me. Eventually, I had to move out because I couldn't stand it anymore.
One of the best roommate stories I have was with a girl I lived with in an apartment. We both loved to travel but never had the chance to go together. One day, we found a really cheap flight deal to a place we both wanted to visit. Without hesitation, we booked it. During that trip, we had so much fun exploring new places, trying different foods, and sharing all those experiences. It strengthened our friendship a great deal. We still talk about that trip often even though we no longer live together.
My roommate used to steal my things. I would notice my clothes missing and then find them in her closet. It was so creepy. I confronted her about it, but she just denied it. After a while, I started locking my stuff up, but it was really uncomfortable living with someone I couldn't trust.