How common would it be for a wife to cuckold her husband because she is very bi-sexual and wants to be with other women? I can’t find any info on this type of scenario.
It would probably depend on whether your wife wants to act out on her bisexual urges. If she wants to play with other women then it may open up the possibilities of her being willing to consider bringing another guy in as well.
Your best bet would be to find out if she wants to hookup with women and then explain that you’d be open to it if she’s open to cuckolding you. You might be surprised. I’ve known other couples that have got into swinging and cuckolding due to similar circumstances. Good luck!