Everything in this story is 100% true so it won't be as exciting or thrilling as a fictional story.
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When I was in my mid 20's I worked at a restaurant in Northeast Ohio to help myself pay my way through college. One of the people I worked with was a bartender and my initial reaction to her was not positive. I found her grumpy and abrasive and didn't hide the fact that she wasn't my favorite person. As time went on I grew to understand her demeanor more and we started having conversations. We talked about a lot of things but one of the things she would occasionally throw in was her problems with having large breasts. Now, she was not a fat woman (she's ten years my senior) but she's tall and sturdy built. In fact she's slightly taller than me but that's not an amazing feat. With her build it wasn't surprising that she had some decent sized boobs and they weren't small, for sure, but seeing her in her work uniform I didn't exactly think they were that large.
One day we ended up going out to the bars as friends and had a few drinks. I dropped her off at home and as she was walking up the stairs to her front door she asked for a hug and jammed my face right between her boobs as she was standing a few steps above me. It was a completely surprising move and clearly no accident. This up front and person interaction with her boobs was the first time I realized that they were a lot bigger than I thought. My head just sank in between her boobs and I loved the sensation.