Anal and sex 5 times

Ive had anal today without lube or any foreplay and it did not hurt at all for my first time.I expected so much pain but didnt feel any🤔.He cummed in my ass that felt the weirdest 😅🙄then we had sex 5 times with more than four positions no foreplay no lube i felt the pain then.why?me and have beat 3 rimes before but it was fine👌🏾mind that beating today i was really wet