in sex both the male and female release signaling hormones to each other that trigger certain pathways unique to sex, same thing with parenting and pregnancy. it's literally irreplaceable, both neo-cuckolds and neo-cuckoldressess will have a void that will never be filled. they will masturbate one time, two times , ten times, using robots, machines, giga dildos, electricity, nanomachines, etc but this void will never be filled. i fucking hate modern society for telling us that everything natural is bad and for making humans unsocial. literally the only species to turn from eusocial and prosocial animals to solitary animals that don't even want to have sex because it's too much interaction. funny how the only species to have a lot of control over itself is going to commit suicide.
>tl;dr
Have sex