Whenever Valentine's Day is coming, men either feel threatened by the need for a perfect gift, or are turned on by the possibility that they can nail a vulnerable chick that night, if they care about this day at all.
Let me give some advice to those who are already in a relationship, therefore they feel the need to buy the perfect gift. If you have no idea what to get her, then even a bouquet of flowers or some chocolates would do, as well, but if you want to make sure that you have sex, then buy something sexy. Probably lingerie is your best bet, which should be made of red lace, satin or silk. Another great surprise is to take her out to dinner. In this case, pick an elegant restaurant instead of a fast-food restaurant, or if you want to surprise her with dinner at home, do not let her see as you throw out the takeover boxes.
If you are single, however, then V-Day, and the night before are the perfect days to have sex. Some girls feel the desperate need to have a partner on that day, and they are willing to do anything for it. Keep in mind, though, that not all girls are like that. So, you need to spot the ones who might be smiling, but their sad eyes keep on searching for someone in the crowd. But if she looks at the door every time it opens, it means she might be alone, but you don't have a chance to get her, since she wants someone else already.
Test these theories today!