What a hot topic. I once watched as a coworker of my wife's slid his hand under her dress at a small party. They were making out as were others, some were slow dancing, some just sitting, talking and enjoying. Her newly acquired BF eased her panties down her legs - with a wicked smile my wife lifted her hips to facilitate removing her panties and they resumed. Her skirt was hiked up and we all watched, breathless as he brought her to orgasm on the couch, in the slightly dimmed light we could see her wet labia and thighs glistening. It was breathtaking, although some of the guests were trying to be discreet about watching. Needless to say, we invited him to follow us to our home for the night. It was the beginning of something very, very good.