From the video (watch below), the representative from the G-Spirit give an overview about their products and why they want to use the sexy girl to promote their product, here are some summary from what they said:
"The idea of a G-spirits brand originated in from our time as a bartender in a cocktail bar.
Even then, we were eager to work with only the best spirits to achieve their optimal taste experience. Over the years, our experience grew, and with it our goal. We quickly realized that taste alone is not enough time to have a drink to "perfect" enjoy. Good taste is the foundation, the mediated Feeling the coronation. Through our interest in the best spirits in the market we came once on a vodka that has flowed before its bottling about diamonds. To give a fair idea about a feeling. For us, however, there is nothing bigger than the eroticism of a beautiful woman. For perfect enjoyment, we make every drop of our spirits flow through the breast of a very special type of woman, we recognize in this my spirit. This sensuality gives the true character of the brands and give them a soul, a spirit, a G-Spirit."