Women are unfortunately fickle minded when it comes to sex. And unfortunately they don't often want it as often as we do. But with the right seduction techniques you can convince her to have sex with you even when she doesn't feel like it. All it takes is a little more effort on your part.
A common seduction technique that most men use requires eloquence. Talking about sex is a common yet effective way of seducing women into your bed. You can talk about your fantasies, about the different positions in bed or even about some new oral techniques that you'd like to try. The best time to talk about these things isn't necessarily in bed either. Because of the way that women work, you need to tease her into wanting sex by talking about these things when you obviously can't try them out. Talk about it over dinner or in a show or when you're just hanging out at the mall. This method of turning her on is like causing an itch that she can't scratch.
Learning what turns women on (or what specifically turns your partner on) is are a crucial part of seduction techniques as well. Women work very differently from men so you need to find out what she likes. You can do this by trying to get her to open up to you. Or you could just be sneaky and scope out her private stash of erotic material to get an idea of what she likes. (Don't let her find out that you've been going through her stuff though.)
Another way of seducing women is to just jump her when you get home (or vice versa). Women don't often tell or admit but they actually enjoy the idea of a man being completely animalistic and spontaneous. Just be aware of your surroundings and if you jumped her while she was cooking or something, remember to turn off the gas!
Lastly, most sure fire seduction techniques require a hot bath. Whether you're at your home or if you've rented a room a hot steamy bath is bound to turn the heat up. If you're seducing her in your home, then try to create a great romantic and sexy atmosphere with candles and maybe even a bottle of wine. Use bubbles or light candles to add a bit of romance to the seduction.