Pleasant Surprise | Part 2

*This fic is a website member exclusive*

Summary: Sam is the youngest Winchester sibling and the only one who hasn’t presented yet. Dean and Y/N both presented as alphas four years ago. Sam had always assumed he would be the same – so none of them ever made any preparations for this day.

Pairing: Sam x Dean x Sister!Reader
Rating: 18+
Warnings: Incest, Underage
Tags: A/B/O, Wincest, first time, threesome, Sam is 16, Dean and Y/N are 20, age gap, twin!reader, alpha!Dean, alpha!reader, female!alpha, omega!Sam, dom!Dean, switch!Y/N, sub!Sam, presentation, desperation, sibling rivalry, overstimulation, lactation kink, nipple play, knotting, breeding kink, taboo kink, deflowering kink, praise kink

A/N: In this fic, the alpha/omega presentations are more indicative of dominant versus submissive leanings within a bedroom dynamic and less about a desire to reproduce. Male omegas can carry children, but so can any biologically female person, no matter what they present as. Female alphas have an internal knot and use a male omega to impregnante themselves by locking his cock inside of them. Same presentation relationships exist but only an alpha/omega pairing will result in a pup. An alpha cannot impregnate another alpha, and an omega can’t impregnate another omega, no matter the biological sex of any of the partners involved.

Pleasant Surprise Masterlist
Kinktober Masterlist: Day Eight / Day Nine / Day Ten

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