My wife has been heavily involved in two relationships within the marriage, the first when she was in her early to late 20s, when she had an affair with my then best friend. I was not aware till one night i watched him seduce her having reluctantly agreed with him before hand. Unknown to me he was already having an affair with her, he conditioned me into liking this idea before this evening. She was confident i would like watching this and i did, she immediately started playing more with me so i saw the benefits of her having a lover.
What i didnt know was the affair predated this first watch by 2 or 3 years,
She had previously discussed her willingness to carry his baby which he actively wanted and they tried for,
They discussed her leaving me should this happen, moving in with him, then she changed her mind once i had agreed she could have a lover.
I had had the snip by this time so obviously i would know the ...... was his, she changed her mind based on that as i had probably watched her fertilization how could i then complain.
I finished this "arrangement" when i found all this out and she agreed not to see him again.
Several years later i introduced her to another lover, he was kind gentle and a lovely man into heavy BDSM, they had a very intense relationship mainly formed through BDSM, over 6 years i knew he loved her, he told me, we became good friends too. They both asked me my views if she became pregnant by him, i said i didnt want this to happen to her by now in her 30s, they agreed, he had the snip.
They went away together numerous times sending me video and or pictures and she kept in touch every few hours, she said she didnt want me excluded. He said he wanted to share her with me and as a cuck i should allow this. During this period she commenced feminizing me, no longer needing me as her lover.
The relationship went wrong when she decided she loved him and wanted him to herself, making it difficult as he was married, he refused.
She seamed to think he could move in with us, i would remain the "locked" cuck and alpha male of the house as i have been through out our marriage, sexually she would continue with him as we had by now become used to. In all other areas we would just share her completely,
He put this to me and about him playing a larger part in her life, but remaining with his family and married i refused knowing this would at some stage end up as simply the two of them in a relationship and this had by now become too complicated and had to finish.
So she decided to end this relationship, to save ours told me and that was that finished.
There is a fine line between being a cuck and becoming a mug.