"Just the tip, that's all I'm asking! Please!" "Of course it's out of the question!" Aika desperately resisted her own son's advances. Ever since he caught her masturbating, her son had been demanding increasingly lewd acts from her, which she reluctantly gave in to. However, she absolutely refused to allow penetration. Trying to preserve the one boundary no parent and child should cross, Aika held the line with what she believed was maternal instinct. But her lustful, determined son wouldn't accept that, proposing a compromise—just three centimeters, just the tip. That brief moment of hesitation would bring a new, irreversible change to their relationship.