Better safe than close. A phrase Alleria repeated to herself so many times over their lost years that it has become some strange combination of vow and hymn.
Alleria/Turalyon sexless marriage
They cant touch due to their contrasting affiliations with the Void and the Light, so their relationship has become a painful angst filled marital struggle. Mutual masturbation is the most they can do and both find it dissatisfying.
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Written for the kinkmeme - 'Alleria/Turalyon sexless marriage'. It diverges somewhat from the original prompt, but hopefully keeps to the spirit.