This must be Lucy's 52nd birthday worked out as follows:
She was 29 when she entered the show as her 30th birthday was mentioned. Lee was 39 as it was mentioned that he is the same age as Lucy's brother Tim who is 10 years older than Lucy.
She and Lee got married after knowing each other for 7 years and Charlie was born the year after at Christmas 2015.
Charlie was previously quoted as being 14 so this would make it Lucy's 52nd birthday. This would make Lee 62.
This makes the characters a fair bit older than the actors, who at the time of filming #13.5 "Train" were 43 (Bretton, playing Lucy) and 54 (Mack, playing Lee).
This makes the characters a fair bit older than the actors, who at the time of filming #13.5 "Train" were 43 (Bretton, playing Lucy) and 54 (Mack, playing Lee).