Rumlow's Plaything

M/M, Captain America (Movies), The Avengers (Marvel Movies), Marvel Cinematic Universe, Pre-Serum Steve Rogers, Alternate Universe, Alternate Universe - Modern Setting, Alternate Universe - Slavery, Slavery, Sexual Slavery, Steve Rogers Feels, Hurt Steve Rogers, POV Brock Rumlow, Hurt/Comfort, Past Abuse, Bondage, BDSM, Heavy BDSM, Punishment, Latex, Sensory Deprivation, Chastity Device, Butt Plugs, Gags, Collars, Non-Consensual Body Modification, Abuse, Verbal Humiliation, Humiliation, Scars, Plot With Porn, Not Captain America: The Winter Soldier Compliant, Alternate Universe - Canon Divergence