Their laughter and chatter could be heard from time to time. Sergio was in the office next to theirs. He was smoldered with resentment as they were apparently enjoying each other's company. 

"Despite their predicament, they were laughing very happily. It was as if they were on cloud nine. "

Great. Laugh while you can. You guys would not feel like laughing anymore soon. He thought angrily. 

The muscles along his jaw clenched and his eyes glowed with savagery. 

"Although they were under immense pressure, he did not catch sight of them being in distress or agony. They were as affectionate as ever to each other and disregarded everyone else. ...