My wife picks all her own from a website. She'll arrange a social first which she'll tell me about and if all goes well she'll arrange to meet up again usually the following week for sex and again she'll tell me and ask if I'm coming along to watch.
Not really. She is usually approached by them and I am told after it's arranged. Sometimes one or two will come via me to arrange and that's a thrill, especially if he requests certain underwear or none.