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>The volume of an Eevee's womb is approximately 100cc but can expand to as much as 800cc during pregnancy. The average depth of the vagina is a mere 5cm, but during arousal it can accommodate male Pokemon genitalia up to 10 cm comfortably
>Great care should be taken when breeding your Eevee with other members of its egg group, especially due to the great size disparity between breeds. A Growlith, for instance, is twice the size and four times the weight of an Eevee and should be restrained by the breeder during copulation as to avoid discomfort for the female.
>Though possible to breed with larger males, it is EXTREMELY dangerous. An Arcanine, for example, has genitalia ranging from 25 to 30 cm, well in excess of what can safely be handled by an Eevee in heat. In addition, the volume of ejaculate can exceed 1200cc in mature males, with reports of over 1500cc from especially virile males. Arcanine also will mate up to 15 times in a single day with a single female. Wild Arcanine will sometimes force female Eevee to breed in absence of suitable mates, these females can sometimes be spotted at the entrance of Arcanine dens grossly swollen with seed attempting to escape, but inevitably are pulled back inside to continue copulation.