First things first you’re not gonna “make” her take anything. It’s going to be her choice and desire to be fucked by one and if you’re lucky, you have some ability to shape it once she tastes that forbidden fruit.
it’s been my experiences as a bull that a lot of husbands are just too pushy about doing things And the wife ends up getting turned off or says fuck it and starts to really get into the bulls herself, despises her husband and ends up leaving her cuckold because the bulls ironically treat her better than her fucking husband does.