According Ed's Toolkit the source of said background is in splatbook called 'Outcastes' (a 2th ed splatbook I presume, it has Lookshy trained sorcery and non-Lookshy trained and I took the non-Lookshy trained version). It says each dot gives me one free sorcery spell. Like Abyssals have necromancy background (in 1st edition anyways). It's up to ST to decide tough does it apply or not. If it does not, I simply run out charm slots entirely and I am sorceress which knows no sorcery spells (but is able to learn). At worst case scenario I end up sacrifice my charms and break my concept either be seducing socialite or be plain sorceress. As it is already painful to get all wanted charms with 7 what DB start with. At least 4 goes to lore charms to gain Birthright Font+elemental bolt, 2 needed for archery charms to get to make my arttilery combo and then two charms to get seduction charm. 1 charm goes to able to learn Terrestrial Sorcery.