Mommy's Secret Discipline with Her Playmate

I'm a Mommy in my fifties, and I have been for years. It started when my partner, who is significantly younger than me, suggested we try out a DDLG dynamic as an adult play scenario. We had talked about it before but never really acted on it until one night he came to me with the idea of exploring this together in a way that felt playful yet serious. He said he wanted to feel like someone younger under my care, and I liked the thought of being the authority figure in our relationship again after so many years. We set some boundaries early on: no actual age regression beyond pretend for him, and absolutely everything we did would be consensual. There was a lot of discussion about power dynamics and making sure that there were clear lines between playtime and real life. One day during one of our sessions, things got more intense than usual. We had planned out some light discipline scenarios involving spanking, but somehow it escalated past what we'd talked about beforehand. I feel like my maternal instincts kicked in a bit stronger than expected, maybe it was just the roleplay getting to me more deeply. The thing is, during this particular session he mentioned feeling ashamed afterward, which really threw me off. We've always been so open with each other, but suddenly there seemed to be some insecurity about his desires and how I reacted. The next day we had a long talk about it all, him feeling like he overstepped, me wondering if my response was too harsh or out of bounds. Looking back, I realize that while our sessions are supposed to be structured and consensual, sometimes emotions run high and things happen unplanned. It's okay for there to be consequences within the play world as long as everyone agrees in advance. We've adjusted some rules going forward but also learned from this experience how important it is to stay connected emotionally even when exploring different dynamics. It's funny, after all that I thought we'd had our big moment of drama and conflict over DDLG, turns out we just needed a reminder about what makes these sessions special for us both: the mutual respect, communication, and understanding. So much for a simple adult play scenario turning into something more profound.