Woo-Bin left them to it and went to get a glass of water. After which, he briefly went to check on the children and made sure the air con wasn't too cold and that they were warm enough.
He touched Si-Si's hand and noticed it was a bit cold.
'Hm, should I just turn it off?' He wondered but eventually concluded on increasing the heat by a single degree.
While he was leaving, Ryu-Ryu started tossing and turning so he went over to him and gently patted him back to sleep.
By the time he got back to the action, he found Hae-won on all fours with Baek-Hyun drilling his hole from behind. This looked like it was their second, no, third round because of all the cum he found on the bed.
And here he was wondering how long Baek-Hyun was going to keep up the careful man act.
His time away had killed his lust but watching them, his cock grew hard again and he couldn't just sit still and watch.