You should tell him that it is not yet the right time, since your parents are against it. If he likes/loves you, he will understand your situation and be a little more patient. In the meantime, you can talk to your parents and let them know that you are ready to date, and once you have cleared that, your boyfriend can comfortably meet your parents.
the consequences to your disobedience. you should have told him beforehand. because of this he might become disillusioned or disappointed. it says a lot of his character. most guys and men don't wish to meet the parents unless he's serious about. he's a keeper and a rarity.
You don;t mention your age but I bet your parents don;t want you to "date" because you are too young. Why not just accept your parent's decision and wait instead of unleashing a whole host of problems for yourself? That would make life easier for everyone.
The real question is - are you having se.x with him? Are you under 18? If not, or if so, talk to your mom - assuming you have a good relationship with her - you need to understand a lot of the details and dangers of unprotected se.x. If your bf wants to meet your parents - that's a plus for him - and your mom will see that - and she most likely knows how to handle your dad.