Of course Summer's first laugh would be at her brother. She and I were sitting in the hammock while Garrett was playing with the neighbor's dog through the fence. She thought it was funny enough to warrant her first laugh. I forgot how darling those first little giggles can be :-)
She is so very close to sitting up to, she can go about 60 seconds on her own before she flops, and can sit for a while if I just put her in the bobby pillow. She's always chewing on something, her teeth are driving her (and me) nuts!