"sexy-cd-blowjob" is a tag used to describe a porn video where a character or performer gives another person a blowjob, which is a sexual act involving oral stimulation of the penis. In this particular context, the word "CD" could refer to one of two things:
1) The term "CD" may be an abbreviation for the word "candy," so the phrase might mean that the blowjob is performed in a particularly playful or seductive manner. This type of scene often involves teasing and foreplay before the actual act takes place, emphasizing sensuality and pleasure.
2) Alternatively, "CD" could be an abbreviation for the language "Chinese," suggesting that the performers involved in this particular porn video are Chinese or engaging in sexual acts with a Chinese theme. This might include specific cultural elements or references, costumes, or settings related to China.