Be wary what you answer...
1. When was the first time you had sex?
Never.
2. When was the first time you did anything with 'sex' in the title that may not have been intercourse (and with whom?)
Oral and 18-19 years old.
3. Are you in a relationship now?
No 
4. Have you ever cheated on your partner?
No
8. How many sexual partners have you had?
One
9. How often do you masturbate?
Whenever I feel like it and I don't feel like I am going to get walked in on.
10. Has anyone else masturbated you?
Yes and failed miserably.
11. Have you masturbated anyone else?
Yes and also failed miserably.
12. Do you masturbate more or less in a relationship than when not in a relationship?
I don't honestly know. I think I am less ashamed of my body now than a year ago when I was in a relationship, but it wasn't because of the relationship.
13. Not counting before you lost your virginity, what's the longest you've gone without sex?
Still haven't had it and I have not decided if I am missing out or not.
14. Do you engage in chastity play?
Could be fun, but right now there is not a big appeal to it.
15. Do you own a chastity device?
Maybe someday.