Writer Francesco Marciuliano has taken some interesting turns with the comic Sally Forth. For the most part, it remains the domestic strip about the foibles of a working mom and her family.
But Marciuliano occasionally slips in dialogue that suggests the characters know they're living in a comic strip (see Meta Forth). As in the sequence published September 9, 2014. (click on image to enlarge)
Sally Forth is a situational humor strip, so it's not surprising that Becla remains 12 year after year. But Bettina, who was indeed born in 2013, is having her first birthday. So are the characters now aging or -- ?
Actually, I think Marciuliano want to have it both ways. Some characters will age, others won't. It's a novel idea, and I'm interested to see how it plays out. As Ted advises, though, it's best not think about it, or the whole system (that is, the premise of the strip) will fall apart.