Well, it's been 18 months...

... and we think that they might actually love each other. Why do we think this? Here are a few reasons:

1. Viv and Gav have gotten really huggy and kissy towards one another in recent months.
2. Gavin will bring things to Vivi when she's sad (like a paci or her Elmo).
3. Vivi hasn't gotten as far as Gavin in terms of making grandiose gestures towards him, but she does nod her head when we ask her if she loves her brother. 
4. They both will *usually* feed each other when prompted by us or by one another.

Yep, they love each other. We just hope that this trend continues- at least for another 18 months.