My sister was riding down the highway with her husband and they came up to a semi-truck where the driver had written in the dust on the backside of his semi, “Show me your boobs.” So, she put her sweater on the front of her chest and lifted her elbows up in front of her as if she had huge knockers and as they passed the truck she just looked up at him and smiled. At first, he did not know what she was doing until she pushed her elbows up a little, then he started hooting. Her elbows under her sweater made her look like she was 4 times a DD.
A long time ago I was part of a military convoy on a California freeway when this Toyota Tacoma came alongside of me. The female in the passenger seat lifted up her t-shirt and then cupped her fully exposed breasts and proceeded to jiggle them up and down. Fortunately, I was able maintain control of my tractor trailer. Made my morning!