I'm not going to tell you anything before our 18th birthdays, except that Karen and I each had our favorite boy-blouses by then. They had button fronts with strategically placed buttons and not too many of them. Fabric was not too clingy and thin enough that, without a bra underneath, nipples could make their point. We'd learned that if you bend your back a little so that the cloth puckers in opposite directions at the buttons, it opens a little viewport under your breast, and if you get the lighting and positioning right and maybe a little shrug for some bounce, you can stop a guy in his tracks. You can make sure things open out correctly by inconspicuously setting the layers in opposite directions so they pucker out, not together. Karen excelled at that maneuver and had breasts to maximize the effect.
Our birthdays were only a week apart, and we were good friends long before then on the high school swim team. Even a 1-piece suit, designed for speed, shows how a girl is put together and I'm sure we helped with male attendance at meets. We used to argue whether breasts made you faster or slower. I don't know about that, but we beat plenty of flat-chested narrow-hipped girls in races. We celebrated reaching 18 with our first bikinis, not telling our parents who would not have approved, but keeping them hidden for our private beach excursions.
There were plenty of beaches nearby, and beaches are where girl watchers congregate. We loved to head out in the surf for a long swim, coming ashore strategically to stand in the shallows in front of a cute guy to wring out our hair, then walk up past him with a smile. We thought about losing bikini tops to a wave, but that would have been awkward, not to either look completely intentional or to lose the top entirely. Letting one breast slip out of a skimpy top was easy and fun, but only effective if there happened to be a guy close by.
We were both virgins and naive, barely past the point of thinking babies might be caused by kissing. We weren't ready for babies. and had all kinds of tactics for getting a guy's hopes up but avoiding consequences. Privately, we giggled to each other about the bulging trunks and the awkward behavior we could trigger in boys with our little "accidents."
We were walking past a beach-side girly bar one day when Karen said, "Let's see if they'll hire us." There was no chance our parents would ever let us work there, but would we dare to apply? Sure, we would.
The first thing the manager did was check our IDs carefully for our ages. Then he took us into a little room, put on some music, and asked us to dance. There was a tall metal pole, but neither of us had the slightest idea how to use it. We faked as well as we could but couldn't fool him. He did like our bodies, though. "You will need some lessons from the other girls, but you look good," he said. "Would you take your suits off, please?" We didn't quite expect that--or maybe we did. There was no real need, except maybe to test our limits. He could see enough with bikinis on to know we passed the body test. I think he just wanted to enjoy one of the extras that came with his job.
I pulled my top off and let him inspect my breasts. He didn't touch, no doubt fearing he would drive us away. I shook them for him, just to be pleasant. About the only detail he couldn't check with the bikinis on was whether we still had our pubic hair. I pulled my bottom down to let him see that I did, then off. He did not recommend any changes. I turned around for him. He didn't ask me to bend over, but I did that too. Then turned back to face him.