Well for heavens sake....
Number one...sex really is a private thing..if you want to talk about it and someone WANTS to hear it - well...go for it.
As far as women not wanting to give blow jobs...well...I would say it depends - it personally makes me gag. Tried it and it just doesn't work for me....and my husband is turned off by the gagging noises I am making....since he is and will always be my one and only - I am going to say it is just not for me...maybe it is a Southern thing but I don't know too many of my friends who jump up and down when asked if they want to give their husbands a blow job...it does nothing for us...it is a "for him" thing! And I will do it if he wants..and if he doesn't mind the gagging...just a reflex I can't seem to control...