Well, it seems that even postrated in all fours, forced to drag her enormous udders in the ground and incapable of further speech, Sairia continues to show intelligence, not only that, when her eyes flare up, it's the signal that she doesn't even need her hands to use her dangerous powers.

Time to solve this detail, another spell should do the trick, it's almost comical to witness how the cow tries to look defiant while bellowing like a stupid animal in all fours, but it's funnier to watch the spell in action, the cow starts gurgling, then her head suddenly caves in, and her brains start to spill out by every orifice in her head; as her skull's top continues to lower, more and more brain mass spills out of her; unable to stop the spell, the cow only manages to gurgle more as she keeps vomiting until her whole head is empty, finally, the cow gives a content, grateful and loving moo, ready to serve as a proper fuckhole.