One male opinion......
It's up to you to make the sex,you do have, explosive. Try lots of foreplay. Attention to foreplay makes the difference between okay sex and TO DIE FOR sex. You want him to remember the things you do and think that NO ONE could ever do it better.. sex should last a while...not be over in just 5 minutes. It doesn't have to be oral to be really great if that is offensive to you..
For you to do..and always remember...(MUST BE LUBED). KY lube works.
Have towels handy cause you both will get wet. Form your thumb and forefinger into an "o" shape and lube it up . Grabbing his penis at the base with the unlubed hand, pull back his foreskin (if equipped), if not, just hold it. Now, take the other hand and wrap the "O" just under the head. Now, move this up and down slowly about an inch. He should really like this. Now, start rotating your fingers back and forth (as if you were opening and closing a bottle). You can criss-cross too up over the rim of the head, but go back to that spot and keep twisting..doesn't have to be fast... in fact slow will make that incredible feeling last longer.. (This is pretty close to a male "G" spot as it could buckle his knees if standing or make him shake all over with pleasure) A man will find unbelievable pleasure doing this. He will never forget it. He will be gasping and gyrating. You will feel the penis growing bigger. When he swells up big, and he will, finish it or initiate intercourse. For a man, this almost feels better than an orgasm because it lasts, is explosive and can leave him quivering.
(Many men have NEVER had this done by hand because it can't be done dry...it's just too sensitive and needs lots of lube) Pre-cum is not good enough and evaporates quickly. Most guys don't think of lube being necessary even in masturbation...so he will think youre incredible..
For you, you got to tell him what you like and how you like it. It's probably better that he excites you first or gets a head start because he will be out of control with what you do.

additionally......
For a man, there are several different types of sex enhancer products that might get him going. Cobra (rated high), Stamina RX (new formula), too new to be rated and of course the big three drugs, Viagra, Levitra and Cialis.
Most take 45 min to an hour to be at full steam.
For a woman, talk to your health store clerk. They get positive feedback on things that work.
If he likes this, you can initiate sex next time by giving him the "okay sign"! Believe me, he will know exactly what you are talking about.

Please come back and tell me if I helped you...it's important that I get feedback as this is just my opinion.. others have tried this and love it.