Since they were in a public place Aster removed his hands from Alice's ass but he still kept his arm wrapped around her waist, in any case he already told both Sarina and her father that he had more than one lover and if he was going to try anything with Sarina, he was going to need to explain how close he was with both Lilia and Alice anyway.
"I will cross that bridge when the time comes", he thought.
While Aster was outside contemplating the night sky with Alice, Sarina was now dealing with a little situation… Kana actually heard her mother and Aster talking, she woke up in the precise moment when Sarina was undressing but she faked to be sleeping, since both Sarina and Aster were focusing their attention in other things, they didn't notice the slightly open pair of curious eyes looking at them.
Once Aster closed the door she suddenly "woke up" and spoke with her mother.
"Mom, is dad the bad guy?", she asked.