This image reminds me of someone called Elizabeth who I used to know. For a couple of years in my late teens - maybe turning twenty - I socialised a lot in a group of four - as well as me there was another guy I'm going to call David and two girls who I'll be calling Elizabeth and Julie. None of us viewed it as any sort of boyfriend/girlfriend relationship although I would have been quite interested in Julie being my girlfriend. On one occasion we were all around at David's flat and Elizabeth and Julie were playing up and making life hell for David and me. We put up with it for quite a while but eventually, they pushed us too far. David and I exchanged glances and suddenly sprang into action. Before they had time to react I had Julie across my knees and David had the same with Elizabeth, and we proceeded to spank the pair of them on their bottoms. I wouldn't say it was hard and it was over the seat of their trousers but they would have felt it and had a bit of a tingle. I should add that this may sound a bit non-consensual but it wasn't the first time one of them had their bottoms smacked on some pretext and there was never any objection. And they didn't complain this time either although this had been a bit more ritualised and also simultaneous but they got to their feet grinning at having provoked the reaction.
What was really interesting was that a couple of days later I was visiting Elizabeth at her flat and she made some comment about why I'd only spanked Julie and not her. I could have given the obvious answer that David seemed to have taken care of that pretty well, but I was just so surprised by the remark that I struggled to comment.
Then, another couple of weeks later, we all went to a fancy dress party - not really my thing but I went along with it albeit without much enthusiasm. We were supposed to keep our outfit plans secret but I was pleasantly surprised when both Julie and Elizabeth turned up dressed as schoolgirls. Partway through the evening I was chatting to Elizabeth and she made a comment that she was hoping I might have dressed as a headmaster.
About six months later I had to move for work and our little group broke up. I can't believe, looking back, that I didn't pick up on the signals from Elizabeth. As a footnote, David and Elizabeth married a couple of years later.