"Uhmm~mmmgh~mghh~".
Sloppy wet sounds combined with some enticing lewd sounds, filled the area as Alice used her mouth to please her beloved brother.
Aster had closed his eyes and just focused on moving Alice's head up and down and the rhythm of his choice, meanwhile Alice did the rest to improve the experience.
Just like Aster at this point knows every single of the girls sweet spots after having played with them so many times, not to mention he instinctively knew how to please a woman, courtesy of his dragon lineage.
The girls are the same, they each know how to arouse Aster at their own way, during the time they couldn't have vaginal intercourse, besides using the backdoor which is a kink both Aria and Alice developed thanks to the literal years of that.