Cassandra has been waiting for this

"I knew it!" Cassandra shouts as she points down at your massively swollen nutsack "She's a creep and she's trying to assault Amy!"

The other girls look down harshly at you and Rochelle leans forward and grabs you roughly out by the shoulders. She stands you up and she and Cassandra each hold an arm as Alice stands in front of you and Sarah behind. Alice kicks her little foot at your nuts and sends them bouncing upwards, and before they even fully go back down, Sarah's foot impacts your nuts. Your balls don't get a second of respite as the girls go back and forth, a total of 12 ball shattering kicks from each until finally you hurl, vomiting right on the ground.

"Ewwww" say the twins in unison and stop busting you. Rochelle pulls you over and knees you hard. Your dick is completely shriveled and she knees it right back into itself. It looks more like a clit at the moment. Then she takes both your arms by herself and Cassandra stands in front of you and reaches down to your sack. She takes a nut in each hand (they're far too swollen for one hand) and yanks them down. Your legs immediately give way but Rochelle holds you up. She squeezes and twist and sinks her nails into the meaty flesh of your sack and you howl pathetically. She leans in close and whispers in your ear "Amy is mine you dumb slut". She doubles down and squeezes you sack as hard as she can, you can feel the nutflesh warping around her fingers and she tries to vice your nuts to mush. You swear they're about to give way when you hear Amy, finally having pulled herself from the pool and still a little dizzy, stagger up and ask "Wha- wha happen?" As she holds her head and stumbled forward, Rochelle immediately drops you and you fall to the ground spread eagle, not even enough strength left to curls up into a ball. They all start to talk at once

"Omg Amy are you ok-" "-was trying to assault" "Actually a pervert-" "Got her good-"

Amy continues to walk forward, not able to understand a single person over the cacophony of concern being thrown her way, when suddenly they all go quiet and stare as the only sound to be heard is a soft gurgling noise. Amy looks around for the source and looks down to see you, your mouth hanging open in a silent scream, your eyes wide, and her foot standing cleanly on your right nut.

"My.... balls..." Is all you can squeak out before the darkness takes you