Reason: Wiki description for both tags illustrates similarities between the two tags to the point they are basically the same thing- Any instance of huge breasts (breasts bigger than one's head) are effectively hyper. Both wiki pages for Hyper (there is no specific hyper_breasts page) and for breasts state that huge_breasts are hyper; the line from Breasts states specifically; "<b>Huge breasts</b>: G and up sized breasts; used for the completely unrealistic mammaries seen in the hyper fetish." while Hyper states; "Short for hyper-endowed, as in, the character's sexual anatomy (genitals and/or breasts) are unrealistically large, more than can be waved away with artistic licence. Hyper generally features penises and breasts which, in a more realistic setting, would cause death from blood loss or a broken spine, respectively." Both also link to many of the same images as examples.

Alternatively, swap the alias around so hyper_breasts is aliased to huge_breasts; Either way, only one of the two tags need remain.