MacGyver Season 5 Episode 1, The slightest hint of Areola and nipple can be seen under bikini as she laughs. (Last 10 seconds of episode)
Pretty big stretch for this one but I did manage catch it while scrubbing through the episodes. Will do a more in-depth search of the series soon.
Its more obvious in the original AVI format but without a Bunkr invite I'm unable to share. Saints preferred mp4 format caused the shadows to blend.