At the time of this event we had been together for almost 2 years and now i can probably say the only reason the relationship lasted so long was the sex.
To begin with, she had by the age of 22 when we met never had an orgasm, also being unaware of this made her very interested in sex once she realized the potential of our intercourse.
I was 19 at the time, drinking way to much.
My GF was about 170cm tall with wide hips and bcup breasts average size nipples. Blonde. Thick thighs in a perfect combination of muscle and fat.
Two years before this experience i provided her with her first orgasm through oral on the clitoris, she told me afterwords that it was the first orgasm she had ever had and then she gave me oral. I never really liked receiving oral but this was something different. Before i realized she had swallowed me whole and by that i mean DEEP. I lasted for about 30 seconds since the sensation was so overwhelming and throughout the act she maintained the exact same position until she had swallowed my last drop.