We're all familiar with the usual cuckold and cuckquean dynamics

 There are:

The clueless

The reluctant

The bargaining 

Accepting / Hidden Hotwife

Accepting cuckold challenged - unseen but detectable bull.

Accepting / reluctant cuckold 

The eager cuckold 

Humiliated cuckold 

The voyeur cuckold 

The sisssy cuckold 

So what about the wife who entertains another woman without the husbands involvement. 

Or the man who entertains another man without the wife's involvement. 

Or tbe man who entertains an trans-gurl.

Or the woman who entertains a trans-gurl. 

Reference: cuckoldfart.com