Seven deadly sins X eevee mate reader

In the story, you'll be the mate of the seven deadly sins, but there's a twist with you are an eeveeon meaning you are able to transform into the eevee evolutions, including the fakemon ones. . . But there's another one who is her maté waiting to be released from a seal Just so y'all know there will BE A DUCKING SMUT! SO DON'T JUDGE ME MATHER F'ERS