Are you in a committed relationship where sex would be the next natural step? I made sure I was in a relationship for my first time (hetrosexual relationship) and it made things easier. I was 18. Thereafter followed a good few One-nighters but with guys I knew, until I met my bf. At 22 I then got involved in a bisexual relationship that just kind of happened.
But don't let society dictate to you when your age is right