How good is your knowledge of sex?

What do you know about sex, puberty and general naughtiness.

1 When does an erection occur?
2 What is cunnilingus? (More than one aswer is correct, pick the best).
3 What is the proper term for a blowjob?
4 Only men are able to, and do, masturbate.
5 The average (human, male) penis length is...
6 If a girl is your first cousin, it is okay for you to have sex with her.
7 Which of the following is it okay to have sex with? (More than one correct answer, pick the best)
8 Do girls have a penis?
9 The age of sexual consent is...
10 Monogamy is when you...
11 Condoms are 100% effective against pregnancy, STIs and the transfer of materials.
12 An orgasm occurs...
13 It's impossible to get pregnant the first time you have sex.
14 The 'pull out' method is 100% effective at preventing pregnancy.
15 Cowper's gland secretion is better known as...
16 Sperm can survive for up to 6 weeks outside of the body...
17 The _what_ scale is used to measure development in puberty?
18 The _what_ scale is used to measure sexual orientation?
19 If you're a guy, giving another guy a blowjob makes you gay...
20 Masturbation is unhealthy...
21 What percentage of the population has masturbated at some time...
22 Regular sex is unhealthy