Insatiable need to breed
I have an insatiable, primal and increasingly intense impregnation fetish that makes me want to secretly cheat on my wife and actively seek out and breed other women, especially married ones, so I can father a large number of children. My fantasies of doing so makes me rock hard and shoot huge loads.
I realise it's not right, potentially financially ruinous and it would hurt my wife immensely to do so. I also emotionally feel only for her and that I did take the wedding vows of fidelity I need to honour. So my conscience wrestles with this desire often but it's not helped that I have high testosterone, am very virile and very well endowed.
I also already have children and my wife is willing to conceive still more with me but I just find myself wanting even more because my primal desires seem to scream for the need to breed. After all, nothing is better than firing a huge cumload into an ovulating and eager womb.
Many people are meantime often envious of men with lots of material possessions but I find I'm envious of men who have lots of children and want to be in their shoes.
So part of me hopes I one day have the opportunity(ies) come true but the other side makes me hold back and hope I'm never tested as I fear I'd immediately cave in if other women tried to seduce me to bed and breed them.