The particles cascade off the body of a swimmer as she emerges from the pool, reacting with an inaudible fizz on contact with their opposites streaming from the skin of a spectator. This reaction produces a dangerous force; a gravity which, built up over coffee and phone calls, results in a collision. Depending on the density of particles, this collision may be one of hands, lips or--in the strongest cases--feet, legs, and genitalia. With collision comes a critical mass and an infra-red explosion of radiation that may induce a tiny seed growth in the body of the female from which a mighty tumour will grow.

Having completed their reaction, the particles may orbit the couple for a time, decaying according to a half-life that is dependant on status and cleanliness and taste in musical compact discs. Very occasionally the particles may find complimentary domains within the two-body collision. In this case they are strengthened and will remain bound in energetic orbits, the cyclical excitation and decay of which will find expression in romantic dinners and thoughtful gifts.

Conversely if the particles are found to completely oppose the domains in their respective partners, a repulsive force is generated. The energy from this force is most commonly expressed as promises to maintain contact and perhaps a parting embrace.