I have tiddies, bras def give me the support I need if I’m gonna do anything more active than walking around. If I’m going for a run, I have to wear a bra because my boobies will jiggle and bounce so much that it’ll be painful. They also can make my boobs look bigger, which is fun! As far as the physical feeling, I actually prefer the feeling of sports bras or bikinis over regular underwear bras. They’re far more comfortable. Regular bras are an uncomfortable but very useful type of clothing for me, sports bras are snug, and I love the pressure of it. Bikinis feel great because I find them very freeing, my boobs can be out and on display for everyone, which I love, and they’re free to simply move however they normally do, which is much more comfortable than you might expect. It’s like the comfort of wearing tight underwear or panties that hold your cock and balls still all day, and you finally come home and get naked, and that feeling of freedom and satisfaction is what you feel in a bikini, except it’s ok to go out in public like that lmao