Don`t know if its a bit of a niche thing on here or if it`s not everyone`s cup of tea but there isn`t many reviews of M/F couples on here.
I think it`s a bit of a turn on giving a blokes wife a good seeing to when he`s sat there watching the proceedings and or joining in.
Mind you, they are on the pricey side, most are £150-£200 an hour mark.