I don't know if this is OK
Once my boyfriend asked me if I have ever self pleasured myself and I said no
Should I tell him the truth and say that I have

Fist, how old are you?

Second, why would you lie? Everyone masturbates, those who say they don't are lying.

In other words, he should already know you didn't tell the truth.

Why are you afraid to tell him that you know your own body?

Yes, tell him. Absolutely. He'd probably find it hot. And he DEFINITELY won't find lying hot.

Then after that, you should consider why it is that you lied in the first place - that seems to point toward a relationship problem of some sort to me, which may need fixing.

I am 17
And next time I will tell him if it comes up

I just didn't think I should tell him that at the time
If it ever bursts uo again I will be honest.

Ehhhh, I don't know about what altenweg says about everyone masterbating. Neither of my girlfriends did, I know that for a fact (believe me they would've told me, I thought that was like... "sexy"... at the time) but there are definitely a large percentage of people that do. I wouldn't be afraid to tell him, its not necessarily something to be ashamed of. I'd just come out with it, not even necessarily wait until he asks again. I'd just say that there's something you've been meaning to tell him and it bothered you that you lied but you were scared at the time. Problem solved.

It doesn't matter how old you are, masturbation is awesome, normal and healthy.
Some people consider it to be private and they keep it a secret, others are more open about enjoying it regularly or whenever they feel like it. If you feel comfortable enough to say that you do masturbate, then tell him. It wouldn't hurt, because the right partner will find that to be one more attractive thing about you. Masturbation is sexy. Some partners feel threatened when their partner masturbates, which I find strange. I say make yourself happy always, and the person who loves you will love you for all of you.

What I question the most is.. why does he want to know and why should you tell him?
After all it's your private personal business. I wouldn't consider it a lie is you didn't want to admit it... IT IS YOUR BUSINESS AND PRIVACY.

I mean, to a certain degree you could call it your business. However, when you begin a relationship with someone, I believe certain things should be exposed if there is a real sense of shared truth in the relationship. I believe that these things help to build trust, and there's no reason to be ashamed of something like that.

The bigger issue is why you felt a need to lie about it. You could have said "That's for me to know!" & diverted the conversation instead of being untruthful.

Do you not feel safe or comfortable with him?

Being honest is an important attribute to have, but that doesn't mean you have to share information you don't want to. You just need to figure out a way to be honest without giving out info you aren't willing to share. That's important too, because there are lots of people that will ask questions you won't want to answer, but that doesn't mean you should lie either. Just figure out a way that works for you that is an honest response.

Has he been your boyfriend long?

I thought he would look down on me about it but hearing from you guys makes me feel better
And I do trust him the thing is that one of my friends once said that she found it discusting and nasty if a girl did it and I thought about that when he asked,
I should just say it

Thank u to all of you

Its really nobody's business, but your own.

Wow I do agree with the Senior relationship expert

I know its nobodys business but my own but in a relationship I believe that it eventually becomes the other persons business.

Have you asked him if he does it?

I didn't need to ask him he told me that he does all the time