I'll post a link rather than upload since it's a commercial pic, but there's a series of stock photos that I see getting used a lot that feature a super MILFy professional woman with nice bra lines under her blouse. And they're legit bra lines (not bait-and-switch undershirt/tank top lines
).
https://thumbs.dreamstime.com/z/fema...-141680016.jpg