Sasha asks female strangers for sex and gets good results too. See this video:
http://www.youtube.com/watch?v=ddjZf7Nqbo0
His trick though is not to be too direct. But he usually tells them he would like to have sex with them within the first five to ten minutes. He will close by saying something like, "what we will do is we will meet up for a drink sometime and then if we find out that we get on really well together we go back to my place and make love. But only if we get on really well though, if we don't then it will just be a drink together. Does that sound OK to you?"