I am enjoying the dynamic that this artist provides between Cirno and Aya. Ayayayaya~

Hope I didn't botch things too hard with my translations.

Edit: Or, I guess I made a stupid error. Mistook 屋 for 室. Also didn't read the artist's description, so I had no idea about the indirect kiss stuff.

Bapabooiee said:

I had no idea about the indirect kiss stuff.

Aya pressed her lips to the cup, and so did Cirno. The cup acted as an intermediary in their kiss.
Therefore, the kiss is indirect.