Okay hear me out: Steve Rogers, bound and gagged, in the middle of a Hydra gangrape, except they decide Captain America's humiliation needs to be a bit more visual and external. (Maybe they have other captives who are watching, or they're filming it, or maybe just because.) So every time one of them is about to cum, they pull out and come on him instead of in him, until he's covered in Hydra cum.

Bonus garbage points for cum getting into painful and intimate places, like eyes or hair. Double bonus garbage points for rubbing it in (literally and figuratively). Triple bonus garbage points for any potential rescue coming in after the fact and finding him still restrained and covered in drying cum. Quadruple bonus garbage points for an aftermath scene where Steve takes a shower and tries to wash it all off but just can't make himself feel clean.