By its composition, it is not an aphrodisiac... The reputed aphrodisiac qualities of chocolate are most often associated with the simple sensual pleasure of its consumption - its smooth texture while it melts in your mouth it gives you that sensual feeling. Additionally, chocolate's sweet and fatty nature may stimulate the hypothalamus, inducing pleasureable sensations and feeling of euphoria (this is due to the increased level of serotonin in your brain)..