I think my wife likes women

I would like to know if there are other men out there who think their wives are into women? I think mine is. 

I went through her blackberry the other day and I couldn't believe the BB chat I read between her and someone I thought was just her friend. Another married woman for that matter. 

Their chat was of a sexual nature, something you would expect between a man and a woman.

 This lady even sent photos of her boobs and private parts to my wife. I eventually confronted my wife about it and she said they were just joking around. Who jokes around with p**sy photos? What should I do now?