"I promised I'd teach him how to swim, but I'll guess I'll have to post pone it, eh?"
Cordelia looked down at Setsuna, then back to Petrova. "Yeah. We'll have to post pone that..." the mother said through gritted teeth. She didn't mind that Petrova was going to teach her son how to swim at all, but she was still rather angry at him for being so careless.
Setsuna hung his head, shifting his weight somewhat then looking back up. "I'm sorry, Petrova," he said sincerely in a quiet tone of voice.