You kidnap a feminine and at least apparently innocent looking girl and you force her to live with you in some remote forest house.You feed her, you clean her and you tell her stories, you philosophy, your passions etc.You even lick her pussy sometimes but just that.After 5/6 years you free her and tell here something like "I realized no one can love me.Go away and leave me alone."Basically you bet everything on her maternal instinct and MOST OF ALLL ON STOCKHOLM SYNDROME.
Yes you can still just rape her untill she gets old and unattractive, you shot in her head, use her body as a fertilizer and repeat everything with another girl.My method was more for loveless validationcels but you can do as you please.