I know this might sound werid to you but the best way to achive an orgams at your age is to experment with your self... When you know what feels right or good to you then you can tell them...Cause most guys dont know what there doing. They know it feels good for them...Try looking up the g-spot. It is real! Trust me! Hopefully your being safe... I know at 15 you seem to young to get stds but thats how most get it is by being to niave. You dont want to get one there not all cure able or leave you in the same shape you were! Well good luck!

Its great to see you wanting to please your boyfriend, but remember you are still very young! It may be best not to get so intimate yet, but of course the choice is yours. I suggest masturbation. Exploring yourself and what feels good to you is a fantastic way of getting used to your own sexual life. Plus, if you know and are aware of what you like, in future you will be more comfortable with trying new things :d