Hi,
No you can only get a superpastel if both parents have the pastel gene to pass down.
But if you bred a superpastel to a cinamon you would get;
50% pastels
50% pewters
If you think of the genes as coming in pairs and each parent can only pass down one of the pair it has it makes it a little bit easier.
So a pastel can either pass down a pastel gene or a normal gene from the pair it has but a superpastel can only pass down one of the two pastel genes it has.
dr del