March 21st excerpt:

Sam rolled his eyes, nudging Jacob good-naturedly with an elbow. “I could give Bowman a piggyback if I tried,” he snarked back gamely, knowing his own strength. “So unless you’ve been putting on some weight that you’ve been hiding, I’ll be fine.”

April 14th excerpt:

Bowman smirked. “He’s the only one around without wings in the way so he introduced us all to piggyback rides, as he calls them.”

That brought a smile to Dean’s face as he remembered the years growing up with Sam. “He did?” He laughed slightly. “Man, when he was little he always used to ask for piggyback rides. He was such a scrawny kid when he was growing up.”

Dean held out his hand to approximate how tall Sam used to be before the curse, then hesitated. “Well, I guess he’s smaller now,” Dean admitted mulishly, remembering just how light Sam was in his hand.