Des:[What is marking sex?] It is a sexual act in which a dog urinates on its partner and dominates it, much like a dog urinating to mark its territory. Fcup beautiful girl Yuri Fukada makes a surprise visit to a fans home ~ Immediately demands little devil cunnilingus and begs the fan to urinate and drink urine, going wild with the logic that ``If you are a fan, accept everything! Even though she is a super sweet character, she is completely perverted! If marking is OK, creampie SEX!