Ryu was speechless, the old man was really treating him like a kid.
He was quite tall, standing at 6'9. But, quite frankly, as someone with Fire Dragon blood in him, he should have been taller. Much of that was suppressed by his Ice Jade Crystal Body, which kept him to a more streamlined and ideal height for a cultivator. Even when he lost it and gained the Boundless Cosmos Bone Structure, the latter wasn't designed with bodily strength in mind, so it didn't have any functions to change that.
His father, his grandfather before him, and even Primus were all born with the Tyrannical Emperor Bone Structure. So, even now, his father was a head taller than him.
Of course, that was because he was also still in his Dragon Form. But Ryu knew that even when his old man was in his human form, he was still at least a forehead taller.
So Ryu had his entire head cradled in his father's chest as though he was still a toddler.