what excuse should i use to cover the 25mins-masturbation?

I am a guy and im wondering what can i use for my d**k

what do you mean?

If your in the bathroom with the door locked you should be ok.
The extra time your taking just say your relaxing in the tub.
Maybe in your room at bedtime will work but there is clean up to do.
They hopefully will respect your privacy and not concern themselves with what your doing.

already tried.great.another thing:is masturbating 5 days a time very much?

How many times are you masturbating over 5 days is more to the point, if it's only once or twice a day then it's fine

i masturbate once every five days.is that much?chinese doctors said not to masturbate twice in a MONTH even an adult.should i listen to them?

and could you answer to my originaal question?thanks because i think edging is really good at mutiple orgasm but time is limited.other places can i use?(because i didn't have a tub and they got a night-vision camera...

There is no difference in masturbating once a day or having sex daily, you can masturbate as much as you want to just as long as it doesn't get addictive, the body is constantly making sperm as it only has a short life cycle and any that is not reabsorbed back into the body will be released as a wet dream. Masturbation is natural for every teen whether it be boy or girl as it's a way to explore our own bodies and also a good way to release stress, not a sin to do it. The only one doing wrong is your parents if they have a camera in your bedroom because it's an invasion of your privacy.

i am not circumcised.i am 2.2''at usual,and 3.4''at full erect.i could get my foreskin pull down easily,and when it is fully erect,once you pulled the skin down,it stays that way.should i get circumcised?

Masturbating every 5 days is not very much and is probably very difficult to stick to at times. Your stressing a lot over something that is natural and won't hurt you in anyway it's your body and your choice, what you do should be your choice. The country your from and religious believes can certainly influence what is considered acceptable. I saw in another post your concerned about a camera your parents have or use. Do they try monitor and catch on camera what your doing?

now they doesn't,because my father was sleeping beside me and i could get nothing in bed now.

thisis what our doctor said:"Moderate masturbation is harmless, and it is a normal and universal masturbation sexual behavior. But excessive masturbation will seriously affect the health of the body, cause some urogenital diseases, sexual neurasthenia and so on. Male excessive masturbation is likely to lead to impotence, premature ejaculation, prostatitis, reproductive infection and other diseases. So the best advice is 1-2 Once a week."see?i don't know who should i listen to!(as i didn't think chinese doctors is really that strict&wrong about sex issues)

Your father is sleeping with you to prevent you from masturbating?
Do you mind me asking what country your from?
That seems to be really inappropriate to be watched so closely by your parents.
have they caught you masturbating in the past?
What would happen if you had a wet dream?

Were your parents in the doctors office with you when your doctor discussed how often you can masturbate? If they are aware that limited masturbation is fine they shouldn't be trying to monitor your activities. Well if your from China the sex industry has a huge demand for various products so I think many are not concerned about how often they do it. It has to be difficult for you with your privacy and personal space not being respected. You know your parents have urges themselves and would be sexually active.