Although they are both very extroverted Sagittarius men seek commitment and long-term safety in their relationships. It is important for them to know that the love of their lives is committed to them and only to them. Any playfulness in the bedroom must stay completely sexual and not in any way threatening to the relationship between the Aries and Sagittarius. If the Sagittarius man senses that his partner has been unfaithful he will reject her completely, forever. The Aries woman, no matter how tempted, must never cross the line when it comes to sexual exploration. The Sagittarius man will allow the fun but not in any remote chance will he allow separate sexual sessions or meetings without his presence! He will seek to dominate the Aries woman in this area for fear of her cheating on him. However, Aries and Sagittarius and very compatible astrological signs!