Translations:Codex: Gryvain/17/en

Once impregnated, a gryvain will quickly begin to lactate a thick, sweet pink-colored milk. Their milk production (as with other sexual fluids) is considerably higher than the galactic average, and gryvain breasts tend to swell by several cup sizes once they start. Unlike many other races, once a gryvain begins to lactate, she will not stop for the duration of her life, and the increase in the size and sensitivity of her breasts is permanent. While the average cup size is roughly a C-cup among non-mothers, the average tends toward E to F-cups among those who have borne children. Multiple pregnancies can sometimes lead to increased milk production, and a commensurate increase in size. The largest recorded natural cup-size for a gryvain was a tremendous L-cup after fifty separate pregnancies, with the mother in question producing many gallons of milk each day and requiring special assistance to move.