Twin Tropes

http://static.tvtropes.org/pmwiki/pub/images/rsz_stepford_cuckoos_142.jpg

Tropes that surround twins (and higher-order multiple births — triplets, quadruplets, quintuplets, ad infinitum).


Associated tropes:


http://tvtropes.org/pmwiki/pmwiki.php/Main/TwinTropes