Love those unexpected, bent over DB views, especially when unencumbered and hanging free...
May have written this on another thread, but my first recollection of seeing that was when taking swimming lessons as a kid and the instructor was a hot girl probably a senior in HS [so 18 or very close.] The female instructors all had these white terry cloth pullover coverups that had a deep V neck. One session she was teaching the class how to do the frog kick or something like that and had the kids sit on the 2nd row of bleacher seats on the side of the indoor pool with our feet on the 1st row seat. She stood in front of us and had us practice the kick but I could not get the hang of it so she leaned over in front of me, grabbed my feet and showed me how to do the kick. My attention was immediately drawn to the view down her top: she was not wearing a bikini top and her luscious breasts were hanging about 18" in front of my face, jiggling and wobbling as she moved my feet. All too soon she noticed other kids having difficulty with the kick so she showed a couple others in a similar manner. After 2 or 3 kids I exclaimed I still could not do it so would she show me again...
She came back and grabbed my feet moving them in the appropriate motion and I again had this wonderous view... She eventually looked up at me seeming confused how this kid could be so dense as to not be able to do this kick and then realized where my attention was focused. All demonstrations ceased and we were told to get in the pool to practice. An indelible memory to say the least...