Some interesting statistics, for those who care.
The Kinsey Institute - Sexuality Information Links - FAQ [Related Resources]
Lots of stuff there, but here's the most relevant:
Percent of population having had first intercourse, by age
Males................Females
25% by age 15 26% by age 15
37% by age 16 40% by age 16
46% by age 17 49% by age 17
62% by age 18 70% by age 18
69% by age 19 77% by age 19
85% by age 20-21 81% by age 20-21
89% by age 22-24 92% by age 22-24
(Ugh, I hate posting charts here.)
Average age of first intercourse, by gender
Males Females
16.9 17.4
Number of Partners
•Males 30-44 report an average of 6-8 female sexual partners in their lifetime (Mosher, Chandra, & Jones, 2005).
•Females 30-44 report an average of 4 male sexual partners in their lifetime (Mosher, Chandra, & Jones, 2005).
•3% of men have had zero sexual partners since the age of 18, 20% have had 1 partner, 21% have had 2-4 partners, 23% have had 5-10 partners, 16% have had 11-20 partners, and 17% have had 21 or more partners (Laumann, Gagnon, Michael, Michaels, 1994).
•3% of women have had zero sexual partners since the age of 18, 31% have had 1 partner, 36% have had 2-4 partners, 20% have had 5-10 partners, 6% have had 11-20 partners, and 3% have had 21 or more partners (Laumann, Gagnon, Michael, Michaels, 1994).
•20% of American men and 31% of American women have had one sex partner in their lifetime (Laumann, Gagnon, Michael, Michaels, 1994).
•56% of American men and 30% of American women have had 5 or more sex partners in their lifetime (Laumann, Gagnon, Michael, Michaels, 1994).