Imagine for a moment, an opportunity whereby you can do something sinfully forbidden, do it with no strings attached, and have sex with someone else with your partner present? How about an experience that involves some risk but might improve your relationship by bringing the two of you closer? Experiencing such a decadent experience requires the ability to want something more for your relationship, the courage to take a calculated risk, and the willingness to ignore what society teaches about relationships. So how can a couple, completely enjoy a something that is sinfully forbidden and not feel guilty later?
The answer is understanding the power a threesome can hold. To begin with, lately, I have been writing about how a threesome can be liberating without providing much of an explanation. Liberating in this sense means being able to break free of the expectations society holds for a couple and not feeling guilty about it. Also, liberating means to power to feel closer to your spouse by seeking experiences that can bring your closer regardless of our previous teachings about relationships.
For her it means being an equal. Being an equal means ignoring the message about monogamy, what a good wife does, and being able to put aside her feelings for her husband in order to put her feelings first. Having a threesome can mean she is a true equal by being able to sleep with someone she chooses without feeling the guilt that society teaches from a very young age and she is able to it within the confines of a loving relationship.
If threesome is done right then the sexual fulfillment she feels is the result of her relationship with her husband and their dynamics that told her it was okay to feel sexual fulfillment from having a threesome.
For him it confirmation that his partner is sexually desirable and for some men, it can be fulfilling a basic need he has something that others want. By confirming this basic need, it can reinforce the need to keep her happy or risk losing her.
Another liberating aspect for him is making her happy. Through providing another sexual partner for his wife / girlfriend that pleases her, he increases her happiness thereby making him happy. His happiness, in this situation, derives from making his wife / girlfriend happy.
The liberating experience of a threesome can be said to be an experience that increases happiness and commitment to each other by putting aside the requirement that a couple remains monogamous, physically and emotionally, to each other. A couple that is willing to take a calculated risk by experiencing a threesome may find that payment on their investment pays off by bringing them closer.
Threesomes and variations 
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