I think there are but you need to spend a bit of time with them to get in to their head before you pull out your sausage and start thinking it's an easy shag.
I have had two bored housewives as affairs over the past 5-years, one still ongoing and whilst their husbands are better hung and most probably better looking then myself, the women have just fell out of love I guess.
My first affair, she's now divorced and living with a new partner and very happy but unfortunately if I catch up with them and she has a few drinks then she's very amorous and others have caught on there might have been something happening.
My current affair is a lady whom is older than myself (I'm 40, she's 50) but she has the most drop-dead best body I have ever seen on a girl and she really needs sex all the time. I can only do what I can do and apparently her husband is absolutely huge but she just has not been attracted to him for a very long time and has not made love to him in years.