Heat up your Valentine's with the Unlocked Collection<br><br>When Emmy starts at uni and Lizzie stays in London to take up an internship at a magazine, the best friends promise to stay in touch. Emmy entertains Lizzie with sexy stories about her new fling, Charlie, but then the correspondence gets competitive. Lizzie seems to be trying to go one-up with her own red-hot romance – and will she go too far?
