Write a 10 chapter story with dialogue.  John a sexual man married to Sarah.  Sarah is asexual, fluid repulsed, doesn’t masturbate and is repulsed by John's 10 inch penis. John is frustrated because he hasn’t had sex in years.  They compromise John would masturbate to porn openly while Sarah watched, after a few times Sarah suggests he eat his ejaculate Sarah becoming more and more directive of Johns actions, they get into pegging which replaces Johns masturbation Sarah jokes he doesn’t need a penis anymore because her vagina was out of business and would look better without one.  After much thought John decides to get a penectomy but keep his testicles. 
Sarah laughs in relief the first time she sees him naked happy his thing is gone.  She calls him nubby after seeing his hard half inch stump Sarah wanted everyone to know she wasn’t being penetrated ever again
Sarah becomes open to experimenting with new sexual activities. John struggles to reach orgasm, they start pegging and john eats cum from his new hole and eats it every night.  Sarah discovers she enjoys watching John cum out of his new hole and piss like a girl and doesn't mind sexual activities with her dickless partner 
John still feels his phantom limb and performs missionary and has sex sara with an imaginary erection
Sarah invites Emmy, Steve, and Lisa over.  John is naked.  They converse about his missing dick.  Sarah says it’s not missing and gets the jar with it inside to show to everyone.  everyone watches and encourages John to masturbate his phantom
sarah corrects people to eunuch when they call John a man
they go on a nudist retreat where people react to John’s emasculation
Johns friends from school are shocked he was dickless.   His friend Bob asks to see it
Sarah’s friends demand their husbands get penectomies and bring over their own jars 
Now its common for men to get a penectomy be dickless bottoms at their wives urging often getting penectomies when their wife hits menopause or they are done having kids with some men opting for castration as well 
