This is a sub-reddit uniquely devoted to the sexy subset of ladies who choose to wear tighter fitting clothing, which also shows the line of the bra or swimsuit under. This is an NSFW sub, as there could be some content i'd avoid at work, but that's your decision and at your discretion.

Full and round
Olivia Taylor Dudley stretching a shirt to its limits
Tzuyu’s bra line - Twice