Just exploration with my fiance, does anyone know of a good inter-species erotica site?

So after watching a comedy, my fiance and I wondered what it would be like to actually watch a video of inter-species erotica. I know some of you might think us weird, but curiosity is a very strong feeling. I can't find any websites, so I was wondering if anyone could help me out? I would really appreciate it.|||um what? r u for real?|||Sounds like someones been watching Avatar ha ha|||mass effect 2 aliens n humans gettin it on