I've been looking for the source of this gif. After doing a decent amount of searching i've found more gifs and the names "erogos" and "ero train" but I cant find a full video.
Thanks!
More
And another
Higher res but shorter gif
It's from a visual novel with animated scenes, here's the link to all the gifs
http://g.e-hentai.org/g/238861/50f8224dcd/
>>14263913
>gifs
nigga, search for the videos, always better with sound
Thanks to the gif list I found the video http://xhamster.com/movies/2723676/in_series_1_inshoku_chikan_densha.html