My first wife was keen to take her top off on our first overseas holiday but spent most of her time lying on her front to avoid people seeing her boobs. She would also only go topless in a quiet area of the beach.
The next year we went to Majorca and she was a changed person. She went swimming in both the pool & the beach topless and was happy to chat to people (usually men) with her boobs on full display. For a dare she even went to the beach bar topless. She loved the attention so did this a good few times.
Happy Days