Accidental Panty Wetting

I'm going to the toilet when I hear my phone ring. It's my step-daughter: she has just peed in her panties and asks if she can come over to shower. I tell her she certainly can and ask what happened. She's in her twenties and this seems to be happening pretty often lately. To make her feel better I tell her about times I have peed in your panties, all while I'm getting more desperate to pee. As the conversation continues, I realize that I have waited to long to go the bathroom and that I'm about to pee myself. I realize I won't make it to the toilet, so I just lift my dress out of the way and let go. Initially confused and embarrassed, I later admit the feeling of wetting myself was surprisingly nice. I feel very aroused and suggest to my step-daughter we shower together since I'm soaking wet too now. Perhaps we could have another accident together afterward too... Preview is sped up 2x.