Any contributions are welcome to the above.
To kick off...
I like this fetish of women stroking the penises of men and ordering them to ejaculate. This is a great example. Clip 5 and 6 are seriously hot. Mistresses' Autumn (bare breasts) and Monique (no panties) order these gentlemen to cum while wanking their erect penises.
http://promo.lakeviewent.net/jennifer/mj_011208/doulbe.html
I love the way Autumn says "Yes. Cum." while expertly stroking that cock in a glass bowl. Awesome.