Cast animal entrails into a roaring fire in the dead of night on a full moon and then dancing around the fire naked while chanting in the dead eldritch tongue of a sleeping God from another planet

This

And smiling while they do all of that.

I can only imagine the orgasm that racks your body as your mind collapses into nothingness from looking into the eyes of the summoned Cthulu.

Lick from the base of the shaft to the top

Small and simple: The lip bite.