Read two Human Design charts as a single relational field. The composite reveals which channels are electromagnetic between you, where dominance happens, where you share companionship, which centers stabilise jointly when you are together. A way to see two charts as one mechanic.
Electromagnetic — channels formed by gates pairing across both charts; the gravitational pull. Dominance — where one chart already defines what the other is open to. Companionship — shared gates; sympathy and ease. Centers Combined — which centers, individually undefined, become defined together.
No. The composite reveals the energetic geometry of any two-person relationship — romantic, familial, business, friendship. Wherever two charts share a field, the dynamics described apply.