I guess it would depend on the pictures and the videos themselves. May be you should elaborate a little further how exactly the footages are. Is it just you and your girl friend are sitting in the flat with a socially acceptable distance? Or is it that you have pinned her to the sofa like this. "<". I think it would depend mainly on what kind of evidence you have reared against yourself. My best advice would be to destroy the hard disk that has the material. By the way, you should be aware that even sending a message from your home is enough of evidence as the IP address of any post can be traced back to the sender. So it is better to refrain from discussing such sensitive aspects of your life on a public forum. Good luck.