Me and a friend of mine were eating at Denny's earlier, when a busty Latina woman in her late 20's walked by to go to the restroom. She looked to be about 5'6"" or so, with round breasts & nice cleavage. Off of that frontal view, I would put her at at least a DD, maybe even as big as a FF. I was trying to not to look too long, as I would have made it looked obvious. I remembered that I had my camera on me , so here's a GIF that I was able to make when she walked back.