Dream of Shapeshifters

this was a short and brief dream I had about a week ago. I was in either complete darkness or in some kind of woods (don't remember). there were these group of men there too. I was the only woman there and I was standing off to the side of them. it was like I was watching them as they tried to sit in a circle (maybe for some ritual, idk). as they were standing, they were in human form. when they started to sit down and cross their legs, that's when I saw them shapeshift into aliens (green/gray color). I've never had any dreams that are of aliens. I mostly have the school and work dreams on a daily (normal, everyday stuff). I guess cause I have no real imagination. anyways, are there anyone else out there seeing shapeshifters in dreams or have started seeing dreams that are not common for them?