Couple of things. 1) How did they get into a 69 from a standing position? 2) How did they get the third shelf dirty when she was on top during the creampie?
It's time to suggest a NEW tag:
"Caught Masturbating"
In hentai, whenever someone is caught fapping or schlicking,
it often leads to a rapid sexual escalation (as in this chapter),
and it's a powerful erotic moment all by itself.
A classic and relatively popular trope (the library encounter), done in rather splendid manner by this artist. Also giving a hint of realism; namely, the need to clean up after the happy sexy fun time.
In The End, I consider this debut work as "APPROVED!" ðŸ‘ðŸ‘ðŸ‘ðŸ‘ðŸ‘