sparks flying
- electricityEnergy from charged particles
- frictionResistance between touching surfaces
- chemistryStudy of substances' interactions
- tensionStretched or strained state
- romanceLove and its excitement
fireworks · ignition · flint · steel · welding · embers · crackling · attraction · static · collision · anger · argument · heated · passion · magnetism · grinding · flash · sizzle
- flirtingpickup line, wink, winking, hair flip, chat-up line
romantic/sexual chemistry
sparks flyingplatonic
Friendly without romance
flat · going through the motions · dead air · awkwardness · cold fish
conflict/tension
sparks flyingpeace and quiet
Freedom from disturbance
smooth sailing · seeing eye to eye · tranquility · peaceful coexistence · détente
creative/intellectual energy
sparks flyingstagnation
Absence of flow or progress
going nowhere · uninspired · spinning wheels · dead in the water · dull as dishwater