When I was in my early twenties I worked for my Aunt and Uncle in a small electronics firm. Most days, it was only me and I my Aunt Peggy in the office. Aunt Peggy was a very attractive woman. About 5' 1" with very large firm breasts a small waist and very cute bubble butt that shimmered when she bounced around the office. She often wore very pretty dresses to work. Her dressed varied greatly in design but she regularly wore ones that exposed her beautiful milky white cleavage.
Aunt Peggy was the kind of woman that knew she was admired for her cleavage and was not afraid to show it off. Most days in the office she caught me looking down her dress to catch a better look at her plump tits. She would always look up and smile. I could tell by her look that she knew that I was a young horny guy that loved big boobs.
One day in early summer Aunt Peggy wore a very sheer dress to the office. She came in alone explaining that my Uncle was home sick. I often looked to see her panty lines and bra as she walked through the office. Today I noticed that she did not have on a slip and her underwear were the high cut French type. She normally wore the "granny panties". The lack of a slip allowed perfect view of her silhouette when she stood in front of the windows.
Later that day while we worked together on a project I noticed that she was wearing one of the shelf bras. The kind that exposed the top of her breast. When she bent over I could see her pink nipples protruding from the bra. Through out the day she seemed to tease me more and more. I noticed her looking at my crotch to see if I was getting and erection. This continued teasing had me at full mast! I noticed that Aunt Peggy's face was a bit flush too.