These are the social butterflies! They love variety and mental stimulation. If you want to keep them interested you need to be a great conversationalist, tell them new and fresh news and information, be witty and funny. The easiest way to lose them is to show too much emotionalism and personal involvement early on! Keep it light and breezy and the Gemini Venus person will love spending time with you! You will need to learn to make love to their mind first! Phone sex, erotic texts, emails, internet sex, etc is straight up their alley!
Gemini is a very youthful sign, so those people tend to prefer younger looking partners who are versatile and in touch with fashion and the latest trends! Fresh spirit/ looks and curiosity for life is a bit turn on for them!
This is not the most faithful of all positions, but they can be great fun, because they are willing to try anything new and experiment with you without the moral constrains.