Masters_1950:
I guess even a bull's perspective on cucks is determined by the type of women he services and whether or not the husbands are there and how they behave towards him
It depends on if he is a Bull, a Bull or a Bull...
One man who defines himself as a bull and that meet several couples might be one that are chasing them on the web sites or in clubs for swingers/cuckold couples...etc...
It is true that any cuckold set-up (if beyond a fantasy/wannabe phase) will need at least three people involved...the cuck, the wife and Mr. X...
Some may by definition say that Mr. X is the Bull...but in my view, a Bull is a man that in addition to having sexual relation to the wife, also have some "sexual relation" with the Cuck...not necessarily physical contact...
A Mr. X can also e.g. be a Friend of the wife (with benefits)...her lover...a stranger...whatever...and this Mr. X may also be a friend of the cuck (without him and the cuck discussing his sexual relation with the cuck's wife...knowing about the relation or net...)
My ex wife had several lovers...some knew she was married...some not...some knew me...most not...but I had never the pleasure (?) of discussing this with them...even though my wife told me everything...
I think that in a 'normal' cuckold relation...read: a wife fuck some one else than her hubby...Mr. X is not a bull...he is just a man fucking a woman that by coincident is married...
A cuck to my GF - A bull to all other women