As being the only female to post on this string I feel I should share with you my perspective.

No women LOVE to give head.  Sorry... its the truth.  If your girlfriends said it, they're lying.  Any married man will tell you, the BJ's taper off after the vows are recited.  Of course the women you PAY to give you head say they love it but they're getting paid.  So your guilt is in line with reality.

However... I do give head to my boyfriend whenever he wants it for the most part.  If it takes long for him to cum.... after a night of drinking or after he's already gone 3 times earlier in the day it does get a bit frustrating.  They don't call it a job for nothing.  But to see him enjoy it arouses me... if he's moaning and touching my nipples it helps.  I like to rub my pu$$y on his leg, back and forth as I bob my head up and down.  Stroking the balls helps him go faster too.  I do love to give head as foreplay.  For a few minutes to get him super hard, always enjoy that.  I guess as long as I know that I will be able to cum, I don't mind if he takes a bit longer to go.  

I guess what the other guys say is right... you have to just let your mind go.  Having the right girl do it is imperative.. not just with technique but to see her enjoying it will allow you to climax.  Have you ever thought of overcoming this obstacle with the 69 position?  It will train you to free the guilt since you are pleasing each other... then as you start to cum more often that way you should be able to with a regular BBBJ.

Just a thought.