Gave a try at translating the missing bubble in panel 2 with just the sound and a dictionary but I'm not confident of it at all. Couldn't determine the action, the kanji seemed to mean either bluntly/frankly or suggestive/lewd so I went with the context and used stare+bluntly. Also, used uneasy to express the "omoi"/heavy word but I'm not really acquainted with the variable meanings, hope I'm not wrong about it. Feel free to correct it.
Shitty AdmiralHow can you wear such a cheerful smile in this situation!?What lies beneath that skirt are cutesy pink panties, huh...Just staring at the skirt can be this arousing.I never realized... With knowledge of the panties underneath...All because of you, Akatsuki... Thanks!Admiral...? Having you bluntly staring at me that much makes me feel uneasy.