So far it looks pretty straight forward...gals favor MFM, guys favor FMF...hmmm. My fantasy would be entering the top girl from behind as the women feast themselves in a 69. The next move would be to enter her anally. After the position has changed, the woman on the bottom just happens to find a nice vibe and enters it into the woman vaginally. This allows me to feel it as well. I think that would be fun.