"Wrapping Oliver up in his arm, he held the squirming toddler close to his chest, so he could scratch behind Greg's ear while she purred. Once that was taken care of, Bucky let Oliver break out of the hold. Instantly, Oliver tackled him. The pair being louder than necessary, but Steve couldn't find it in himself to tell them to stop. Loving them and the joy coursing through the bond too much. As if Cookie Monster could tell that his brother was playing with his dad, his own movements in Steve's womb amped up. Doubling in effort. Almost like he was trying to break free and join them. And since he couldn't do that, Steve brought his hand down to rub his bump, hoping that it would appease the baby." -Modern Stucky AU -Smut and other mature content -EDITED VERSION WITH NEW CHAPTERS BOOK 4 OF 14: GREEN SERIES ***I don't own Marvel or the characters of Steve Rogers and Bucky Barnes, nor any of the other Marvel characters