"Aha," was the sheepish first response. It took him a moment before he could decide on words. "Can we just keep this between the two of us? If Castle finds out... I mean, you know how he is. He'll never stop with the teasing."

Admittedly, Ryan just didn't want Espo teasing him about how he was a sleep-cuddler. But all the more so in front of Castle. He wasn't over-exaggerating how that would go.