There was a video of multiple succubuses in a hentai fucking boys while music was playing in the background. I have been searching google for months but I don't know the song's name nor the hentai that played.
Pic Unrelated.
What you're looking for sounds much like this -
http://www.pornhub.com/view_video.php?viewkey=ph56ae6a12881ee
Not completely sure if it is or not but if it is, then you're welcome. I don't have any other info on it unfortunately apart from hearing that it's actually just some gifs stuck together into a video.