@Background Pony #0769
The burger Superman is eating is probably referencing the burgers Spike ate in that series of pictures that got him super sexually active. If that place is serving them, then Fluttershy and Celestia apparently had one.
Looks like fluttershy is trying to pull some rob leifeld anatomy there. Underneath that concealing lock of hair are cracked vertebra bursting through the skin, I guarentee it. >.o