Sagittarius and Gemini Compatibility Love and Sexual AstrologySagittarius and Gemini form great friends. Their compatibility is solid and they delight in each other's company. Sagittarius is adventurous and bold, while Gemini is versatile and mentally stimulating. Together, they engage in exciting journeys and enjoy mental conversations brimming with curiosity. Archer inspires Gemini to embrace novelty, while Twins challenges Sagittarius's intellect with intellectual discussions. Their friendship is bold and filled with laughter and amusement.