Sex Between Friends. Pros 
Sooner or later friendship between a man and a woman results in sex. Of course, this does not always happen, but this situation is very common. The question is: should you have sex with a friend of the opposite sex? Do not hurry! First of all you should weigh all pros and contras
Pros
Sex with no limits. The most evident advantage is simplicity of relationships. This means that you do not have to look for a sex partner as you already have one. What is more, your sexual relationships are based on absence of any pressure and limits.
However, this is possible only provided both partners understand that such sexual relationships do not imply any duties. Both partners are honest with each other, they both understand that their relationships imply only friendship and sex and nothing else. None of the partners must demand care and faith.
Tip. If you want to have sex and to remain friends you must be honest with each other. If one of you (mostly this concerns the female part of the couple) has even the slightest hope to turn these relationships into something serious, consider sex to be the end of your friendship.
In 9 cases of ten friendly-sexual relationships do not turn into romance, so you should understand that you can have sex with a friend only provided you do not expect anything more than having a good time with him in bed.
It is comfortable. This situation is very comfortable as this way you miss the intermediate stage of flirtation. You do not have to date, to buy presents, to try to guess what he or she likes. Everything is clear.
You do not have to worry whether he likes you, whether you seem attractive enough to him. You feel very comfortably as you know each other very well. The man do not have to worry about erection or other skills and abilities as he knows that anyway you will remain friends as you can laugh together at some his failures. Such relationships suit people who need sex, but lack time for romances.
Tip. Again, keep in mind that you should be maximum sincere with each other. Also there should be mutual understanding. If your partner refused your invitation you should not be offended or hurt. Keep in mind: no duties!
Your friends and relatives should not know about some peculiarities of your relationships. Everyone should think you are no more than friends.
By the way, feeling easy and comfortable does not mean you should be a lazy lover. Neither you should try to impress your partner in bed. Simply give your partner pleasure and you will be loved back.