Yes, it all could happen that way. Of course, I compare it with the way in which it ought to happen between two young guys. I've been there and done that and by the time the sex happened my teen partner and I were both wanting and needing it. It took us a few weeks to get to anal. I never ever remark about the pain. With a caring partner and lots of time and lubrication what one ought to note is that there is discomfort but then that gives way to the great sensation of being united with a loved one.
You are young; I am old but I would wish for you the kind of happy journey into the fullness of your sexuality that I enjoyed. I have passed through your town several times this year. Next time I will be thinking of you and your story. I DO HOPE YOU WILL CONTINUE TO WRITE. Yes, the suggestions about the paragraphs is good. I try to be easy on my eyes by ussing the bigger type.
Thanks for what you have given us so far.