lt didn't hurt that much but when l went on top of him it hurt! lf it hurts, you can always stop and try again. First time sex should be special. lt should be somewhere where you know nobody can walk in and interfere, because if this worries you, your vagina can tense, making it dry and tight - Meaning more painful for sexual intercourse, let alone first time! Make sure you put your worries to one side so this don't happen.
Ensure that you have all day to practise and experiment. Get lots of lubricants, condoms/toys, and invest in loads of foreplay. You need at least half an hour doing all of this until the girl is totally relaxed and ready to take it to the next level. lt won't hurt if you take things real easy, nice and slow. l promise. Take your time, and relax. Let nature run it's course, and go at your own pace.
Remember: If you need to stop, you can stop. lt takes time.