is masturbating even though you have a girlfreind and she doesnt know that your doing this, is this wrong.even if you know she does not aprove of it

Pete,

It is your body. Masturbation is a perfectly normal, healthy thing to do whether you have a girlfriend, are married, have sex once a month or 10 times a day. The only time how often you masturbate should be of any concern to her is if the two of you have agreed you want to conceive have a child together (you want her to get pregnant.)

Don't let her tell you there is anything wrong with you masturbating while in a relationship - because she is just WRONG.

Susan

Pete, maybe you could try encouraging your girlfriend to masterbate. It's possible that she has a negative view of pleasuring one's self. Maybe if she were comfortable with it then she would be ok with you doing it.

Your post is of particular importance to me...so I wish to comment...it's something I can do for you.
If or when your relationship becomes really serious.......
masturbation is something you SHOULD be able to talk to your girlfriend about. If she cannot accept it, she may never accept it. She should know that 90+ % of males do, or will do it sometime in their life. And like Susan says, it is a perfectly healthy activity. In fact, if you didn't masturbate, there might be something wrong with you! Your serious girlfriend should know that it does not affect your affection or love for her in any way....it probably helps it. She should know it is one of the most pleasurable and safest forms of sex... and that you keep it private behind locked doors and pulled shades. You should never, ever feel guilty about it after...do it, enjoy it and forget it. It's proven good for your prostate, physical and mental health too. Almost all us guys do it.
Mutual masturbation can be extremely enjoyable too, and can be part of foreplay in a relationship and in marriage. Always remember cleanliness, privacy and safety. Part of a truly solid, long lasting friendship is talking over and understanding things similar to this..
However, old-school parents may not be so understanding as us.... so again, keep it private behind locked doors. Lean back, fantasize...enjoy it..let it fly....you are perfectly normal. Most of your male friends your age are doing it too....no matter what they say!
Be sure to come back here with other questions...we are here to help....this is a great site. I'm glad you talked to us.... maybe you will enjoy it even more.
Very Respectfully,
Gregorio

If you are getting your self off and and not putting the wood to her, then it is wrong..... if you give her as much as she can take... then, and only then should you get off by your self.... JMO