They learn it through trial and error, but sometimes it is very painful. So far, I have purchased nearly a dozen dolls, and with each purchase, I feel more confident. When buying a doll now, I will never feel inward and doubtful. There are many options, but it all depends on your needs and the money you can spend. Silicone doll is a realistic doll, секс кукла looks like a real person, like two drops of water.
