First time wife fed me cum. [Cuckold]

Me and my wife have always had an adventurous sex life.
From the beginning we had a lot of threesomes and group sex.
But then one day she said she wanted to talk. She wanted to have sex with a coworker. But she said she wanted to explore doing it alone, without me. We had never done anything without each other before and I wasn't sure how I felt, that I had to think about it.
We continued to talk, and as I thought about it I started getting excited. So for her birthday I wrapped up a box of condoms as a gift, with a card giving my permission.
It was so hot. I had no idea how much I would love it. She would go have sex with him at his place, then come home and tell me about it. She sent me pics.
Then she brought him to our house to meet me, then had sex in our living room while I waited in another room.
Now the part about tasting his cum. They went out on one of their dates. When he dropoed her off she called me and told me to look out the kitchen window. Our window faced the front our driveway. I looked out, they were in the car with the light on. She waved to me then her head disappeared in his lap. You could see his hands going up and down holding her head as she sucked him. I could see his face when he came.
She immediately came into the house. She smiled and faced me. She opened her mouth so I could see she was still holding his cum. Then she put her arms around my neck and kissed me, pushing his cum into my mouth with her tongue.
It was stunning and amazing at the same time. I've since become a cum addict.
There's been a lot more lovers and adventures since then.