Braless years are back for sure!
My wife (gf back then) started the trend a little early, about 10 years ago we spent a semester aboard with 3 female friends and stayed in a dorm together with a lot of other students. Everyone had theor own room but the whole floor shared a kitchen were everyone met up.
My wife never wore a bra in the kitchen and it was clearly visible
it was winter, after cooking we alway opened the windows for sone fresh air and her nipples always poked through .
One of the foreign students spent a lot of time with our group in the dorm, we jokingly said he would probably not recognise my gf with a bra because he always saw her braless.
The other three girl always talked about my gfs tits, how comfortable she looked and admired that she didn't care everyone saw her tits through her thin tops, but they kept their bras on.
Until one day when the best looking of the three with big natural breasts (D cups) entered the kitchen braless in a thin pyjama shirt. It was already late, she went to bed earlier and wanted to grab something from the kitchen. only our group and the foreign guy were in the kitchen. We guys noticed immediatly but enjoyed the sight of her big tits bouncing around in silence, but one of the girls said "wow S. your tits are beautiful!" So obviously now everyone stared at her tits, she blushed and her nipples got hard
she just said "thank you" and quickly left.
But in the following days she came to the kitchen more often without a bra, so my gf finally started a trend
but the other girls still kept their bras on.