6, Yang gets hit with a grimm bomb

When team RWBY was at Atlas, something went terribly wrong. The bomb that went off to kill the hoard landed within Yang's explosion radius, causing her and Grimm DNA to merge, alongside a small amount of Salem's DNA. As a result, although Yang lived, she was permanently changed.

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First off, Yang grew taller, stronger, and a dick. Secondly, Yang gained a ferocious appetite and desire for pussy, along with a change in alignments. Third, in Yang's initial lust, she somehow subdued Salem long enough to stab her cock into Salem's cunt, driving Salem mad with pleasure and euphoria.

In a matter of minutes, Salem was begging for more, enjoying sex with Yang so much that she stopped her immediate plans and saved Mantle/Atlas, if only to get dicked a bit more. Since then, Yang became the world's saviour through sex and domination, gaining a massive harem of friends, family, and lovers from across the world, lessening the threat of Grimm so that people can prosper, and accidentally giving both Raven and Salem dicks after fucking them, since their DNA is like Yang's parent DNA, and that relation caused mutations that ensured Salem became an immortal sex fiend.