M 18 years old n i hv been dating a guy of 22years fr 2 months ..we know each other completely now..now he is asking fr orgasm...what should i do?

Try using complete words. It will get you better results. As for your question, that is your decision to make. If you do not feel comfortable with it, tell him he can accomplish that on his own.

If you are not ready for that, you tell him no. If he can't accept that, then you know he doesn't respect you and it is time to move on.

Troll 🐲.

Tell him to have a one handed love affair !

You know eachother completely after two months? O_0

Tell him you'll wrap him one up for Christmas.

Added later: If you are genuine then first of all check out STDs here's a link:-

http://www.webmd.com/sexual-conditions/ss/slideshow-std-pictures-and-facts

You both should get checked for these before entering a sexual relationship. 

Then if your relationship is entering this phrase, and you know each other completely, and you are ready, he should know that you are inexperienced and be grown up enough to  guide you in this area. You should use protection to avoid pregnancy or STD's see link for contraception.

https://www.brook.org.uk/your-life/category/contraception

Finally, there are videos online based on "sex education."

I  assuming English is not your first language .. I am also assuming you mean by "you know each other completely " is you are in a relationship .. because, there is no way you know each other "completely" , the truth is in two month you haven't even scratched the surface.. And I am also assuming he is asking for sex.

That is something you have to decide for yourself. Making a decision to engage in sexual relations involves an enormous responsibility for BOTH if you. Entering into an adult relationship is something not to be taken lightly .. Don't underestimate the potential consequences.

Introduce him to Suzy Palm.

Learning English grammar should help.

This kind of question would have never survived a week ago!

But I am an adult and will answer for you. You are clearly not ready. Go back to school and get an education before you start giving guys orgasms.