Who are some young looking pornstars?
Lil Lupe had to testify in court that she was of legal age after a guy was arrested at customs for having some of her early stuff. They found some doctor who testified that no way was she legal but he was wrong
The rules seem to change on this depending on which country you live in
Softcore porn in the US is usually anything involving naked people that a) doesn't show illicit acts or "holes" and b) is made to be erotic
I would say at least some of Monroe's videos are soft core but pussy spreading isn't soft core. Neither is dildoing or graphic fingering; which are things she does in damn near every video.
The sleazy dreams video could possibly be soft core but I'm hard pressed to think of another from her.