We were in bed yesterday evening and she wanted me to go down on her. So I did. As I was licking her she told me that I have been a "good boy" and such a supporting cuckold that I deserve a reward. She then proceeded to tell me that every time she visits her lover I can fuck her afterwards, but only if I have a condom on. I asked her about the condom, because she is on the pill. She told me that she doesn't want my "worthless seed" inside her.

 She also told me that if I'm to have sex with her I have to thank her for cuckolding me every morning from now on. Thats something she has had me doing before so no problem. A bit of humility every morning in exchange for sex 2 maybe 3 times a week. I'll take that, thank you.

 Today at work however I started thinking about the condom rule and it has been troubling me ever since. Before when we had sex I always went down on her afterwards so she could orgasm as well and cleaned my mess up. Why not now? Maybe she is thinking about coming off the pill and wants to be sure who gets her pregnant? She is turning 33 soon so that's not that far fetched.