Sex Talk..Need Some Advice/tips

Hello (: so my bf is been wanting to try anal..i was a lil icky about it then ive decided to give it a try the first time that we did i was high on weed...and it didnt feel as painful and also cus it didnt go all in but recently we TRIED And Oh my lord it hurted so effing bad that i wanted to cry so i told him to take it out not to mention it feels soo weird ,so plis tell me ladies who have expirience in this position is it always gonna hurt like that or does the pain eventually goes away ??