28-year-old Ms. Liu Shortly after their marriage, has been worried about twice a week "super deep anal dildo" Sex is not too little. According to her girlfriends introduced them almost every day to do once. Every time she saw her husband is always something more to say look, the feeling is not too little. But for her, twice a week is enough, and sometimes she had to cater to her husband. A long time, she suspected that he is not got sex disease. "super deep anal dildo" American sexologist who made a sex formula: "the age of first sexual frequency = number × 9". According to this formula projections, a person in the 20 age group (20 years old to 29 years old), her sex formula for 2 × 9 = 18, ie the frequency of sex for her life for over eight times within 10 days; a at age 30 (30 years old to 39 years old), her sex formula 3 × 9 = 27, that is, she fit seven times in 20 days of life. But there is a statistics, less than 30-year-old man, about 13 percent have sex every day, every third sex more than once a week, more than half of the time, as well as 17 percent of people every week and only once a month. Off "super deep anal dildo" key is to look at the couple's ability to pinpoint their nodes, as long as both sides have been able to maintain the kind of sexual excitement, it does not matter how much time once.