In the age of the Internet, can sexual exchanges occur outside the home and still be sufficiently private to trigger substantive due process protection?

Does Obscenity Cause Moral Harm?Discuss

In the age of the Internet, can sexual exchanges occur outside the home and still be sufficiently private to trigger substantive due process protection?

In other words, can the government criminally prosecute online obscenity
that is neither foisted on children or unwitting adults nor broadcast to
a public audience in public space?