Are wedding bells ringing for Charlene Choi and William Chan?

Member of popular Cantopop group Twins Charlene Choi and boyfriend William Chan, Hong Kong singer under the same company, were spotted having joint celebrations every year after their relationship went public in 2010, as their birthdays are just one day apart.
This year however, the singer-actress claimed that it is inadvisable to celebrate turning 30 and due to her work commitments, the couple spent a quiet birthday together instead of their usual lavish parties.
"They [birthdays] happen every year. We'll just spend the day together when we can," she said, inviting speculation on the pair's marriage plans.
Last week, William was spotted fetching Charlene to a seafood restaurant for a meal with his family as celebration for his mum who shares the same birthday as him.
The Chan family filled an entire table and in a sweet gesture, the 27-year-old stood to assist his girlfriend with helping the elders to the dishes so that she could sit down and enjoy her meal. Charlene was seen mingling well with his family members and the party carried on until 4am in the morning.
When asked on his marriage plans after bringing his beau to the 'meet-the-parents' session, William explained, "It was just a birthday celebration. I'll think about marriage when I turn 30."