You have broadened your repertoire of spells.
Prerequisite: Spontaneous spellcasting class level 3
Benefit: You learn two additional spells known for one spontaneous spellcasting class (such as bard or sorcerer) you have levels in. You may never use this feat to know more spells at any level than you know at each level below it.
Special: You can gain Extra Spells Known multiple times. Its effects stack.
Adventurer’s Handbook: Genius Guide Volume 1