Strike Witches

>Be a young private around the 501st JFW compound
>Despite already getting to see attractive young women walk around in their panties from time to time, the temptation to take a peek at the open air bath becomes too great
>Arrive at the bath before anyone else does and hide
>Once everyone dips in, you peek around and take an eyeful of as many of the girls as you can
>Inevitably get caught and ordered by Minna to strip completely naked and stand at attention as she scolds you and explains the punishment you're about to receive
>She says you are to be thoroughly spanked OTK with a bath brush by each of them in turn, with Miyafuji healing your ass in between to give the next one a blank slate to work off of
>Her healing leaves your ass super sensitive too, so you never get used to the spankings
>Of course, any of the others who happen to show up at any point gets a turn as well
>Keep getting hard from rubbing against the witches' bare legs, which gets you spanked even harder when they notice
>Finally get to Minna's turn
>Partway through the spanking, you are unable to help yourself any longer, and ejactulate all over Minna's legs
>She takes a moment to process what just happened, then slowly moves her left leg in position to hold down your legs, and maybe has one or two of the others hold down your feet as well
>Then she furiously starts spanking you several times harder than she already was, hard enough that she almost breaks the brush
>After this she won't even give you the reprieve of Miyafuji's healing
>She'd make you clean the mess off her legs, and then bend over with you grasping your knees and your legs spread apart to receive a hard caning
>She says she "only" intends to give you about 12 strokes, but since the "count/apologize or start over" rule is in effect, it actually ends up lasting quite a bit longer than that
>Just as you've finally been able to hold it together enough to make it to the final count, she'd "mishear" you and start all over again
>After she's done with the caning, she orders you to get on your knees and apologize to each of the girls individually
>Then sends you to the corner with your hands on your head, and a freshly peeled ginger root up your ass for good measure
>Later, some of the others like Charlotte might have had so much fun spanking you that they seek you out for recreational purposes
>They'll start using your ass to vent their frustrations or boredom, dragging you away from your duties to bend you over and spank you hard
>Charlotte would have a big school paddle she would use while Lucchini and Erica use a riding crop
>Since unsolicited interaction is forbidden from either side, you'd all end up getting punished once Minna, Mio or Gertrude finds out about it
>The paddle and riding crop are confiscated and used on all of you as you're lined up and bent over touching the wall, with the girls being made to strip naked as well
>You hear their squeals and heavy breathing right next to your ear as you anticipate your own spanking
>Minna demands you keep your eyes forward, giving you a spank out of turn if she catches you glancing sideways
>After each of your butts have been paddled and whipped sufficiently, you are all made to stand in the hallway facing the wall for a few hours before being dismissed and sent back to your regular duties