Analysis of information sources in references of the Wikipedia article "Liếm dương vật" in Vietnamese language version.
{{Chú thích sách}}: Đã bỏ qua tham số không rõ |authors= (trợ giúp){{Chú thích sách}}: Đã bỏ qua tham số không rõ |authors= (trợ giúp)[liên kết hỏng]Fellatio (fuh-LAY-shee-oh) is oral stimulation of the penis and scrotum.
{{Chú thích sách}}: Đã bỏ qua tham số không rõ |authors= (trợ giúp){{Chú thích sách}}: Đã bỏ qua tham số không rõ |authors= (trợ giúp){{Chú thích sách}}: Đã bỏ qua tham số không rõ |authors= (trợ giúp)Most people agree that we maintain virginity as long as we refrain from sexual (vaginal) intercourse. But occasionally we hear people speak of 'technical virginity' [...] Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins' [...] Other research, especially research looking into virginity loss, reports that 35% of virgins, defined as people who have never engaged in vaginal intercourse, have nonetheless engaged in one or more other forms of heterosexual sexual activity (e.g., oral sex, anal sex, or mutual masturbation).
{{Chú thích sách}}: Đã bỏ qua tham số không rõ |authors= (trợ giúp)The social construction of 'sex' as vaginal intercourse affects how other forms of sexual activity are evaluated as sexually satisfying or arousing; in some cases whether an activity is seen as a sexual act at all. For example, unless a woman has been penetrated by a man's penis she is still technically a virgin even if she has had lots of sexual experience.