Is this harassment?

(I'm female 13) A little over a month ago I went to my cousins wedding, the hotel where it was held was quite expensive. Me and my mum asked,  and there was a cashmachine a little bit down the road.  It was about 9pm and  although it was dark my mum said I could go by my self , after all I was 13 .  While walking down the street I was confronted by three boys, about 14-15 . One of the boys walked right up to me , putting his arm around my waist pulling our hips together,  as his arm was wrapped around my waist, his hand found its way to my butt where he kept squeezing it . I didn't pull away as he squeezed my butt and pulled our bodys together , he was taller then me even in my heels so I wouldn't have stood a chance , so I didn't fight him ,  I just let him. He asked me my name , to which i told him ( i know it was stupid ) he asked me my age , I said "I'm 13" " He squeezed my butt and goes  "Nah you've got to be at least 14" The second boy , who was older then the rest , and taller , draped his arm over my shoulders his hand cupping my boob and squeezing it "Especially with these ! No way you're 13 " (34 DD only 5'2 way to big for my liking ), again as he was taller than me I wouldn't have stood a chance,  even if I did try to back away  , so again I just let him. I laughed shyly . The third boy walked so he was  facing me but backwards,  he said "You must be a good kisser then ? " to which I replied "i don't really know  ". The first boy said, " How about me babes ? I could tell you " , I laughed and said "no thanks "  They all kept saying stuff like this for about 15 mins . I got some money from the cashmachine,  all three boys still surrounding me , Both still squeezing my boobs and butt .

"Umm  I should go?  I need to get back soon" I told the boys

As I started to walk away , the first boy grabbed my arm and pulled me back , he pushed my back  against his chest and started to kiss my neck  hands  on my boobs ,all the way up my neck  then he turned me so I was facing him  so he could kiss  my lips,  even tonguing me , yet again  squeezing my butt . He kissed me for awhile . I was scared , so i didn't fight back , I just kissed him , I let him do what he wanted just hoping he didn't go to far . I could feel his dick getting hard against me he  put me against the wall and started to lift my dress up at the back , I froze , his hand found my pants and started to pull them down a bit , he slapped my butt and started to pull them down at the front but he thought better of it , he slapped my butt again,  pulled my pants up and pushed me right against  the wall to kiss me again . I was passed to the other boy who didn't hesitate to start kissing me , he kissed me for a while squeezed my butt  , I was passed to the final boy who also kissed me  , slapped my butt and pushed me against the wall . Finally after what seemed like an eternity I was passed to the final boy again who with a quick kiss on the cheek , and slap on my butt told everyone I could go and they were done . I was absolutely terrified,  like didn't tell my mum everything,  I just said three boys walked by me and said I didn't look 13 , nothing else . It was a month ago now and I keep remembering like it was minutes ago . This is the dress I wore