Let’s try to make the shortest, yet sense-conveying, adult domain name. "sex" will be part of it since it is the shortest possible and  is, in addition, the number 1 adult keyword. A very short specifier word should then follow. Such a word would naturally be "shop" or "home". But if you think about them, they both do not work here at all. "Dpot" is thus the shortest, punny word to fit the concept! This 7-letter adult domain name is the very best in its category.