Symbiotic

[Becky]

adj : used of organisms (especially of different species) living together but not necessarily in a relationship beneficial to each

[Kit]

The best Horde Guild on Destromath LF Ranged DPS

[Michiko]

The hardest rocking, hardest partying best band in Croydon, S.London.
See also [more cowbell], symbioticzone.co.uk

[Sarah]

Involving interaction between two different organisms living in close physical association.