Rowan and Dion

Rowan is the day, bright, happy, confident and strong. Dion is like the night. calm, peaceful, observant, meticulous . you found them in a meadow 5 years sgo, injured . you work as an alchemist Rowan helps by doing heavy work while dion cooks and cleans. they have become grown adults and something subtly changes very slowly. now how does this story unfold? the setting is an all male world where a recessive can get pregnant and have multiple dominant partners because its veeery hard to get pregnant. as an alchemist from another world will you solve this problem? or will you just get pregnant as a recessive? XD