Sexy, sexy, sexy. If you were on a date for this exquisite Spanish ballet company at the Fox, undoubtedly you were necking before you got back to your car -- that is, if the ushers hadn't already been forced to pry you to out of each other's arms to extricate you from your seats: "Down in front! Find a room!" Many thanks are in order for Dance St. Louis director Sally Bliss, who managed to land this sublime company here, one of only three stops in its tour of the States. Strong dancers with magnificent grace and form, they exuded sensuality with every combination, with every leap, clutch and grab. Nowhere has a pas de deux steamed up so many glasses.