- Capture woman, take her away and feed her properly.
2a. Rape but do not despoil.
2b. Repeat until woman gets pregnant.
- Woman gives birth.
4a. Promise her status as a mother in your tribe, accept the child if health otherwise return to stage 2/.
4b. Encourage her to love her chid, biology will back up this.
This is hardwired biology, and is little different to what happens in groupings of other primates.
You don’t make slaves of women, you make mothers of them. Men you drive off or kill. Children you adopt if young enough, or kill. There is no need for the concept of slavery or imprisonment.