I ran across this amateur clip that has a lot going for it, that I wish the professionals would do more of. I'll warn you: the camerawork is shockingly bad (although it does give it a you-are-there realism to it) by whatever friend filmed it. It's also in German, so I have no idea what they're saying.
What I like about the video is the heavy breathing by both the guy and the girl. Sometimes one or both are panting from arousal, while other times the guy is breathing through clenched teeth because he's trying to keep control. From time to time he gives it to her pretty hard and then you hear her really feeling it.
What's also good is the candid enthusiasm. The guy cums prematurely just a minute into penetrating her, but it stops him fucking her for only five or ten seconds at most -- he's clearly a believer that the show must go on! What I love about it is they didn't even pause to clean his cum off her butt cheeks, and later on when he flips her over to fuck her missionary, it gets all over the sheets. At the end of part 1 he seems to cum inside her, but they don't show it.
Part 2 has some conversation, and then he feels ready for more, so she gives him a blowjob to get his erection back. Then they fuck some more, and he seems to be a bit more careful to not cum early this time around -- he's pacing himself.
Part 3 picks up the pace and there's some great fucking and heavy breathing. Towards the end he decides he's ready to deliver a true money shot, but he doesn't wank himself to do it -- he tells her he wants to cum and then he fucks her like mad to bring himself to a boil. What's truly awesome though, is he shoots a good load, but then he decides he wants to keep going by grabbing her shoulders and SHOWING... HOW... FUCKING... HARD... HIS... COCK... STILL... IS... The hardest fucking by far is after he's shot his load... I love his "I stop fucking her when I feel like stopping" attitude. You can tell there's no director to say "cut". It ends only when he finally pulls his cock out in triumph.
http://www.yourfilehost.com/media.php?cat=video&file=German_couple_having_great_sex_chunk_1.wmv
http://www.yourfilehost.com/media.php?cat=video&file=German_couple_having_great_sex_chunk_2.wmv
http://www.yourfilehost.com/media.php?cat=video&file=German_couple_having_great_sex_chunk_3.wmv