When I was sixteen I was still very flat-chested, but my nipples were waking-up quickly. I had a summer top that was kind of knitted from a thick cotton yarn and ordinarily, you couldn't see anything through it even though it was a wide knit, rather like a net, so i never wore anything under it. One day, I had caught the ferry between Helford and Helford Passage in Cornwall (UK) and as I walked along the gang-plank at the landing I noticed several men had their eyes fixed on my chest. being me, I just smiled and walked right on by. I joined my Dad at a table outside the pub for lunch and realised he was motioning with his eyes towards my chest too. When i looked down, I could see my left nipple plain as day, peeking out through one of the cells of my knitted top! It gave me such a thrill, I just smiled at Dad and he raised his eyes skywards lkke he always did when he knew he wouldn't win an argument. After that, I did my best to persuade my nipples to peek out through that top and I have been searching for a similar one for ages now.