One of the most common arguments among couples is the subject of money. They say you can't buy happiness, but not having any won't lead you to a happily-ever-after either. that said, money can do a lot to the quality of your sex life. Here are 8 ways how money can affect it:

1. Having money problems will kill your sexy-time mood

It is hard to find the right mood to have sex when you are in a fight. A recent poll found that finances are the most common source of fighting among couples. If your arguments are based on that, you might want to put a hold on those thoughts before going into the bedroom.

2. If you earn more, you'll probably boost your sex life

People who have more money have more sex. A study published in the International Journal of Manpower found that having sex four or more times a week was linked to a higher paycheck. So get back to work now. And work your ass off. The reward isn't just a bigger check. It's a lot of sex!

3. If you earn about the same amount of money as your partner, it may lead to hotter sex

Partners who earn about the same amount report a "very good" or "hot" sex life, according to the Money survey. Some men even report that their sex life is better when their wives make as much or more than they do.

4. Money can make you think about it more than sex

Here's a shocking poll: 77 percent of women think about money more than they think about sex.

5. You spend more time thinking about your money in the bank than sex

More people checked their bank balance more often than they had sex. I have to agree, this sounds more fun at times.

6. Having money stress will kill your sex drive

Stress is a sex drive killer. But what kills it even further is having money stress. It could cause your mind to drift elsewhere making you less in the moment.

7. Sexual cues could make you spend money on things

A study found that women spent more money after they've touched men's boxers. The study relates that it reminds women of their partner's privates, and gets you excited making you see out immediate pleasure. The pleasure of buying something.

8. You may be thinking about other pleasures money can buy besides sex

If you have lots of money, and things don't spice up in the bedroom, you might end up becoming bored. And thinking about other pleasures money can buy.

[Image via Flickr, Creative Commons]