Brenda Song and Trace Cyrus engaged, not admitting to pregnancy

Disney star Brenda Song and Miley's big bro Trace Cyrus still haven't confirmed that she's pregnant with his child, but they have announced that there are wedding bells in the future. In August news leaked that Song, 23, is pregnant with Cyrus's child, but neither party has spoken up -- though Song's mother has denied that it's true.

After Song was spotted this week wearing a very heavy-looking engagement ring, Cyrus announced the engagement via Twitter, of course. "I am very excited to say, last week I asked my girlfriend Brenda Song to marry me and she said YES! We are both very excited to be engaged!" he writes.

Little sis Miley weighed in, too. She writes, "can't wait for Brenda to be a Cyrus :) couldn't be more excited about my 'sister in law to be' yay :)."

Adorable.