Would be ok to wear a bikini top?

couple of nights ago i went to yoga class and some of the girls were wearing a bikini top with spandex shorts or with yoga pants. well i want to give it a try. i have a pink triangle bikini top i want to wear with some short short spandex volleyball short. i have the body and in shape. i see no different then wearing a sports bra alone. and i also saw a girl wearing a spandex high midriff tube top.