29M and im straight sexually but I got fucked by a random black guy walking home from the store because he said to, he was big and my ass was small so it was stretched

Im not gay but one time I was really high and walking down the street with my ex gfs sleep pants on, some random black guy walked up and said let me fuck you so I did ,I let him hold my head and fuck and bent me over his bathtub and fucked me in the butt(first dick was black and stretched me out ) now my asshole is looser than my wife’s now and she always asked why all four fingers will go right in