i'll start it out with these few things... (and no, they're not coming from current experiences w/my g/f... just thoughts i've had over time)
first, i've noticed that many women seem to shy away from giving head after they've been in a relationship for a while, from what i've heard, especially after getting married... (although not too many of the ladies around here it seems, lol)... my advice is DON'T... we know sex is good, but so is letting us be selfish from time to time... plus, you're in total control and can tease us as much as you want, we won't complain
second, don't forget the boys... we love having you lick, suck on the head and shaft, but pay some serious attention to our balls and we'll be complete putty in your hands (well, hard putty)
third, stop being so self-conscious... go wild, leave the lights on, don't worry about how you look... we don't really care if you think you're having a "fat day" or think you've gained a couple pounds... we want someone that's going to embrace their sexuality and be totally focused on what's going on and enjoy themselves