Keeping the Birthday Secret

Our girls desperately want mobile devices for their birthdays. They used to say they wanted a phone, so we gave them an old flip phone Daddy wasn't using anymore. It was still active, so they could call us if they needed. This, of course, was not what they had in mind.
Still, every time they leave the house I ask them if they have their phone. They carry it, but with the shame that comes from having an old flip phone. I, on the other hand, like my old flip phone. All I want to do is have a device so I can make calls and receive them.
My flip phone days came to an end recently when we decided to buy the girls mobile devices for their birthday. By the time you get the family plan, we might as well all be on it with new devices. I joined the mobile device world.
Now the goal is to keep it a secret for a bit longer. We're going to give them their birthday presents early, but not quite this early.
Yesterday I forgot that my new device was sitting on a cabinet next to my desk. The brunette twin walked right by it and I held my breath. I was sure she'd notice it. I waited for her to ask about the new device. Daddy suggested we tell the girls my flip phone broke and I got a new phone, so I had a back story. I just didn't want to use it.
She walked right by the device. She didn't even notice it. She kept talking as she walked into the kitchen. I quickly grabbed the device and put it under my computer stand. I followed her into the kitchen as if nothing happened.
The good news was that nothing happened in her world. She kept talking about speech class. I kept asking questions. The secret was safe for one more day.