性々堂々ですねわかります

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I understand; you mean "you're the horniest and its standing up," right?
This is a kanji pun on what Admiral says in the second panel, 'seiseidoudou' ('fair and square'), but replaces the 'seisei' part with the kanji meaning 'sexual' (repeated). It changes the meaning to something about magnificently sexual without changing the pronunciation any.