Remember the very very bad idea involving Tila Tequila’s womb and her brother’s baby that I posted about on Monday? Well this idea’s even worse: she might become a stepmom . . . *quickly does the Sign of the Cross*

Baby-powder heiress Casey Johnson has flown to New York with her “fiancée,” Tila Tequila, to try to reclaim her daughter, Ava, from the custody of her mother, Sale Johnson, and bring the toddler back to LA.