Sleep is an eight-hour peep show of infantile erotica.
Sex acts don't drive erotica, the people who engage in them do.
The difference between pornography and erotica is lighting.
Sangeeta Bandyopadhyay is a stylistically daring writer in love with surrealism, credited with being 'the woman who reintroduced hardcore sexuality to Bengali literature'. But though the (male) establishment used this label of erotica to dismiss her work, the sex scenes have exactly the same transgressive function as her use of chronology and narrative voice.
I don't know what the definition of pornography is and nobody else does either. Pornography is somebody else's erotica that you don't like. People are interested in their own sexuality and they've always reflected it in their art. End of story.
Erotica is simply high-class pornography; better produced, better conceived, better executed, better packaged, designed for a better class of consumer.
Erotica is using a feather; pornograpy is using the whole chicken.
Pornography is about dominance. Erotica is about mutuality.
Though both erotica and pornography refer to verbal or pictorial representations of sexual behavior, they are as different as a room with doors open and one with doors locked. The first might be a home, but the second could only be a prison.
In short, pornography is not about sex. It's about an imbalance of male-female power that allows and even requires sex to be used as a form of aggression. ... But until we finally untangle sexuality and aggression, there will be more pornography and less erotica. There will be little murders in our beds - and very little love.