Shinra buries his face on the pillow and bites it to hide and stop himself from moaning. He doesn't know who is on the phone, but he doesn't want to be heard moaning by anyone.
But keeping his voice down is hard to do, especially when Obi's huge and manly dick is inside him.
"It is fine, Captain! What's important is that you are here now. But yeah, I miss hanging out with you. You'd better be prepared for me being extra clingy to you!"