I've been cucking my husband and keeping him in permanent chastity for 3 years, because I'm not sexually attracted to him. I fuck my black bull every day and he cums in my pussy, while my cuck is only allowed to lick our sexual organs and swallow our love juices. However, I started to feel bad for him recently. Maybe I should allow him to have sex with me at least sometimes. Maybe twice a year on our birthdays. I know I will not enjoy it, but I want to do it for him, because it feels like he is unhappy, but still does all of it for me and I want to do something for him too. Is it a good idea? 