Dragon/Leo and Dog/Gemini meet at 65–70%, the Dragon king with Lion might encounters the Gemini Canine whose wanderings avoid the unpleasant. The Chinese halves are zodiac opposites. The Western halves sit in sextile harmony. Heat meets wit.
Chemistry is theatrical and quick. Dragon/Leo brings indomitable willpower and Lion might; Dog/Gemini brings the Gemini athlete and the loyal Canine searcher. The bedroom is exuberant. The risk: the Gemini Dog avoids the unpleasant when the Dragon king's despotic tone needs answering, and the Lion roars into wit.
Conversation is regal on Dragon/Leo's side and dancing on Dog/Gemini's. Dragon/Leo declares; Dog/Gemini investigates from a dozen angles. The risk: the Dragon's monologue meets the Gemini Dog's sideways quip, and the Lion's pride takes the hit.
Friction lives in the Dragon/Dog opposite axis softened by Leo/Gemini sextile. Dragon/Leo wants subjects; Dog/Gemini wants the next stop. When the Dragon demands a coronation, Dog/Gemini slips out the side door, and the Lion roars at empty seats.
Dragon/Leo learns from Dog/Gemini that lightness can survive Lion fire; Dog/Gemini learns from Dragon/Leo to stay long enough to witness the coronation. Both halves practice charm school on purpose.
At 65–70%, this is a moderately compatible, sextile pairing. Dragon/Leo and Dog/Gemini can build something, both halves trade flight and despotism for presence on purpose.