Translations:Codex: Kui-Tan/19/en

As a common sexual fetish, kui-tan are very receptive to testicular stimulation. When particularly swollen, or when orgasming, the skin on their balls becomes extremely sensitive, making touch very effective at further turning them on. As a consequence, most kui-tan greatly enjoy the feeling of semen washing out of their partner or spilling down their balls, and will usually react to oral pleasurings - lickings, kissings, suckings, etc - with the same manner. “It’s not real sex if your balls are still dry when you’re finished,” is a common sexual saying on their planet.