There's a strong chance of love and tenderness growing between you as you become more deeply intimate with one another, in part based on a sense of shared past experiences. You'll both feel as if you have a lot in common, which will help you relate to one another as friends as well as lovers. The affection that sprouts between you will make you both feel as if you fit together well, especially if there are other positive influences between you to support this feeling of unity.
You may not even understand exactly why you like one another so well and feel so close; there will simply be a strong current of togetherness and similarity that allows you to become intimate. You may share similar values and hopes for the future that also bring you together, so share your hopes and needs, and express your positive, tender feelings for each other. This will strengthen your relationship and allow you both to revel in the warmth you create together.