Hey @mapletree39, welcome to PlaySafe!
What an exciting, liberating, overwhelming time. No doubt there’s a lot of thoughts going around your mind and it can drive you crazy – or maybe it was just me! Ha! But it sounds like you’re worried about regretting having sex for the first time. Is there anything in particular that you’re concerned about or think you might regret?
It is totally up to you what you do with your body and like @NickiPower said, you don’t have to do anything you are unsure about. I would also suggest that there definitely is turning back. If at any stage you no longer want to have sex (with this guy or anyone), you can definitely say so and immediately stop having sex.
Personally, sex for the first time with a partner was something that I felt comfortable with and was something we were both willing to try in our relationship. The circumstances of your relationship with this guy, whether committed, casual, friendship or anything else, may differ but a chat might help work out what page you’re both on.
I hope this is helpful @mapletree39. Do you think a chat would work or is there some other way that you think might help you feel more comfortable?