I agree with Perna and only add that with inexperiance (possibly) on his part and yours....do you ever initiate sex or do you wait for him? I know in many cultures it is just expected to be the man's 'job' to always be the one initiating, but you are both young enough to stretch the boundries--it could be (since according to you, he is thoughtful and considerate in all other matters) that he is just unaware you would like love making to occur more often.