Adulthood Rites
Adulthood Rites (1988) is the second book of Octavia Butler's Xenogenesis trilogy; it was preceded by Dawn and followed by Imago. All three were published in an omnibus as Xenogenesis Trilogy and later as Lilith's Brood.
Plot
Akin is the first male construct (this is the name that indicates cross-breeding oankali/human child) born from a human mother. He´s Lilith Iyapo's first male child.
After the humans arrive in Earth, they could decide if they’ll stay with the Oankalis and breed with them, or leave them and try to make their own cities and live a long infertile life. Since the Oankali made genetic modifications in all humans in their ship, the human are no longer able to procreate without an ooloi.
Because of that, some humans begin to steal construct child hoping they could breed normally when they reach adult age. This book narrates how Akin, the first male son of Lilith, was captured by a group of humans and lived between humans for a long time.