Board Thread:Lore Discussion/@comment-67.177.21.237-20140107140211/@comment-24999978-20140701090836

This is a rather old thread to dig back up again, but Vivec and Mephala states:

"As known in the West, Mephala is the demon prince of murder, sex, and secrets. All of these themes contain subtle aspects and violent ones (assassination/genocide, courtship/orgy, tact/poetic truths); Mephala is understood paradoxically to contain and integrate these contradictory themes."

I am sure it is not too uncommon for spheres to overlap to a certain extent, it appears to be the case with other Daedric Princes.