I had to save this picture even though Talmage's hair looks ridiculous (there's that cowlick I was referring to earlier...) and Wesley's face is completely washed out due to poor lighting. Because, after taking many, many pictures of these two, I have learned how rare it is for BOTH of them to be smiling at the same time!
And this picture just makes me laugh. Heads and bodies tilted exactly the same way. Exact same facial expression ("Mom, you're weird.). Yep. I'd say it's pretty clear that they're brothers!