Source?
>>271757
Well, I've searched far longer than I want to. I'm pretty sure it's they're from a hentai called The Last Molester Train 3, as can be confirmed here: http://www.animecharactersdatabase.com/character.php?id=32296
Just in case that doesn't help though, just looked up "twin train trap" and you'll get a video of the scene they're in.
By the way, every character in that image is a guy. Hope you like feminine penises, OP.
>>271770
Actually the one with red eyes is female and the one with blue eyes is male.
>>271789
Real? All the posts in this thread kept joking that they were both male.
My mistake.
>>271770
Thanks