9 3 0 s . ▁ ▁In ▁ 1 9 8 7 , ▁DC ▁proposed ▁a ▁system ▁of ▁label ing ▁com ics ▁for ▁violent ▁or ▁sexual ▁content , ▁Ch ay kin ▁with ▁Alan ▁Moore ▁and ▁Frank ▁Miller ▁boy c otted ▁DC ▁and ▁refused ▁to ▁work ▁for ▁the ▁company . ▁▁ ▁In ▁ 1 9 8 8 , ▁Ch ay kin ▁created ▁perhaps ▁his ▁most ▁controvers ial ▁title : ▁Black ▁K iss , ▁a ▁ 1 2 - issue ▁series ▁published ▁by ▁Vor tex ▁Comics ▁that ▁contained ▁his ▁most ▁explicit ▁dep ict ions ▁of ▁sex ▁and ▁violence , ▁with ▁a ▁story ▁of ▁sex - obs essed ▁v amp ires ▁in ▁Hollywood . ▁Though ▁Black ▁K iss ▁sh ipped ▁se aled ▁in ▁an ▁" ad ult s ▁only " ▁clear ▁pl astic ▁bag , ▁its ▁content ▁drew ▁much ▁criticism . ▁This ▁did ▁not ▁stop ▁it ▁from ▁s elling ▁well ▁enough ▁for ▁Ch ay kin ▁to ▁describe ▁it ▁as ▁" pro bably , ▁on ▁a ▁per - page ▁basis , ▁the ▁most ▁prof itable ▁book ▁I ' ve ▁ever ▁done ." ▁▁ 1 9 9 0 s ▁Ch ay kin ▁returned ▁to ▁DC ▁to ▁write ▁the ▁three - issue ▁min is eries ▁Tw il ight , ▁drawn ▁by ▁José ▁Luis ▁García - L ópez ▁and ▁rev amp ing ▁some ▁of ▁DC ' s ▁science - f iction ▁hero es ▁of ▁the ▁ 1 9 5 0 s ▁and ▁ 1 9 6 0 s , ▁such ▁as ▁Tommy ▁Tom orrow ▁and ▁Space ▁Cab by . ▁Later