I have a question on AF/BB, would appreciate any answers / thoughts.

So I understand the AFBB concept, but what I dont understand is why these women dont give blowjobs to their BB husbands. I know of two cases where they said with a straight face that they didnt like giving blowjobs and had never done it. Both around 30, one with 2 kids, one with 3, so they have been around atleast 12 years, if they started at 18.

My point is, ok they had their fun for 12 years, but shouldn't they give blowjobs to the guy who is paying the bills ?

So that is my question, why do they deny blowjobs and deep kissing to their BB husband, even though they have done it with several hundred guys before ?