Definition of "sultriness"

All I Need, Sylvester's most recent album, is first rate. Here is a dance record that doesn't forget it's a dance record: it delivers! From the easy sultriness of the title cut to the libidinous urgency of "Hard Up," the seven selections […] have your foot tapping and your body jumping.

1983 April 9, Charles Fuller Jr., “Sylvester Sparkles”, in Gay Community News, page 10