I was straight when I started cuckolding. With my ex
Slowly moved towards helping the bull to first help him insert his cock in her pussy (felt good to hold his big hard cock in my hand)
Then it moved to me using my hand to getting the bull hard
Cram pie eating came next and one day she asked me to clean his cock after he dumped his load in her pussy and without hesitation I sucked him clean
Quite a turn on and enjoyed participation the taste and was able to please them both
As you can see a pattern emerged
Next I was under her while she was getting pounded and I would lick her lick his cock and balls the classic cuckold position
Eventually he would even come in my mouth or ask my wife to share the cum form her mouth to mine
The ultimate was him coming over once while she was away I think she arranged it and he said he was horny and in my wife's absence I had to take care of him and he made me take it up my ass
That was the end for me it was painful and enjoyable and I came out as a bi cuck who enjoys now all aspects of cuckolding including fluffing taking loads orally and anally if the bull wants me to
Not all bulls are into this and some want the cuck to participate in different degrees