Is that baby James?! Ryan Reynolds took to his brand-new Instagram account to share a supersweet close-up photo of what looks to be his hand holding his daughter's. The actor joked, "Thumb wrestling isn't always fair. Curiously, my hand is the small one." Soon after, Blake all but confirmed that it was James in the picture, regramming the adorable snap and writing, "And with that, my husband @vancityreynolds joins Insta." Since James was born in December, both Ryan and Blake have gushed about their baby girl, with Blake saying she looks just like her dad. Keep reading to check out Ryan's cute Instagram snap, then see how other stars introduced their little ones plus all the sweet things Ryan's said about his daughter!