If I'm suntanning at the beach then wearing a bikini is perfectly acceptable.
I wouldn't feel weird about it because we're at the beach and that's what people wear in that context.
But if I was getting changed in my room and a male person happened to see me in my underwear then I'd feel funny and get embarassed. That's mostly because it was a mistake, it shouldn't have happened, and the context wasn't right.
Also, just in my own personal experience, as I'm quite shy you won't see me "running around in a bikini" because I feel there's not enough coverage / fabric for me to run around carelessly. And it might take me a little bit of time in order to get adjusted to the sense of nakedness that wearing a bikini entails. Some girls are like that, you know.
A girl can fit right in with the crowd when wearing her bikini at the beach, but stray too far from the ocean into city territory still wearing her bikini, she's now called a slut, lol. Maybe even cause a car accident looking like she does...
because we are stupid. when i was younger id wear a bikini to in short dress like a slut. i wanted guys to stare at me. if it was accepted i wouuld of went out naked. all girls are like this whether they're conscious of it or not. its survival instinct to keep the species alive. however I've like to think I've kinda transcended earth by.00003 mm just enough to not be a computional robotic whore like my sisters
one is made for public viewing, the other one isn't. But really they show the same thing lol.. one is just "intimate and viewed a being private" the other one is acceptable to show
the fact is that bra and underwear do not have the same material as a bathing suit. Bathing suits have more material and structure feeling as though you are more covered even though it's showing the same amount of skin, but is it really? If you were wearing a bra and underwear and went into he pool or beat and a me out. You will be exposed, you'll be able to see everghing. Lmao, so that's also why girls feel uncomfortable to go into the pool or beach like that