[Bakuhaku] The Seven Dirty Sins (Nanatsu No Taizai)

A giant gal and a gal of a normal size - two close friends who are willing to come to be something bigger (he-he) for each and every other. Is there a means? Well, since we are in the fantasy world of "The Seven Harmful Wrongs" there is one: the enchanting potion that makes particular things to grow strong and large and even giant! And you have possibly already presumed concerning what specifically thing' we are chatting about, haven't you?