I prefer these types of scenes when there is swallowing, and where the girl doesn't seem to avoid the cumshot.   

Try amateur allure.

Or creamed cuties: simple cumshots right into a girl's mouth, often with cute inexperienced actresses.  You can find clips of this series on videobox.   

http://ccgals.com/sh/movies/office_sluts_01xm/

http://www.freepornofreeporn.com/free_video/gallery_017/pornstar/europe_hotties/vociahbgde.html

http://www.sneakoutteens.com/slaphappy/specialslappy112.html

http://www.bigpricks.biz/peternorth/index1100a2880999.html

http://galleries.payserve.com/1/0/14074/index.html

http://galleries.payserve.com/1/0/16448/index.html

http://galleries.videosz.com/brown-eye-for-the-straight-guy_4/21,3130,0.html 

 http://galleries.adult-empire.com/5258/17191/2152/index.php

http://galleries.adult-empire.com/4758/12803/2152/index.php

 http://galleries.adult-empire.com/4758/12812/2152/index.php

 http://galleries.adult-empire.com/5209/21267/530/index.php

 http://galleries.adult-empire.com/4758/9150/2152/index.php

 http://galleries.adult-empire.com/5170/18645/2152/index.php

http://galleries.adult-empire.com/5170/11408/2152/index.php

 http://galleries.adult-empire.com/5170/12322/2152/index.php

http://galleries.adult-empire.com/5258/17238/2152/index.php

http://galleries.adult-empire.com/5258/17210/2152/index.php

 found here:

http://www.jizzcoated.com/ 

some i'm not convinced are real, but whatev 

 http://www.realgf.com/galleries/l006/babes/index8.php

http://www.realgf.com/galleries/q017/blowjobs/index2.php

http://www.realgf.com/galleries/p016/cumshots/index7.php

http://www.realgf.com/galleries/q017/cumshots/index26.php

 http://www.realgf.com/galleries/q017/cumshots/index27.php

http://www.realgf.com/galleries/p016/cumshots/index.php

http://www.realgf.com/galleries/q017/cumshots/index9.php

not exactly what you are looking for but heck its worth watching. the girl is hot and she loves what shes doing

http://www.myspicyclips.com/view/750/hot-brunette-giving-a-head/ 

You must have seen this short clip:

http://www.tube8.com/hardcore/teen-deepthroat-cum-through-her-nose/3325

Amateurs creamy: http://www.revesex.fr.nf

    Don't know who she is but she's very enthusiastic (wait for the ending...)

 http://www.roofieo.com/article_full.php?id=86

 http://kriboo.france.free.fr/Gal1/spe0121.jpg