My mother and I were calmly discussing whatever had been going on earlier in the dream, walking outside to the edge of our/her front yard as we spoke.
It was nighttime, and the house we were at appeared to be quite loosely based on at least one of the houses we've lived in over the years. Not sure if I was living there or just visiting, but it's hardly relevant to the story.
At this point one of the cats approached us through the darkness, meowing. After he kept this up for a moment, as though trying to get my attention, I became concerned - that cat is usually quite aloof, only really meowing when it's either feeding time or he wants to be let outside (which is often because he's pretty grouchy).
Getting worried, I went closer to him and he kept pace, seemingly leading me somewhere. I followed him inside and to a mirror, where I realised what he wanted - help with his magical girl cosplay.
I chuckled with relief (and bemusement) upon discovering it wasn't anything life threatening, but soon realised the cat was quite upset about the difficulties he was experiencing.
We looked at (I'm guessing he showed me, not sure how though) a variety of photos of various human cosplayers attempting similar costumes. I pointed out that his was already considerably better than some of them, and that he was already doing really freaking well considering he was a cat, but he wasn't satisfied and wanted to make his costume even better.
So far, from what I remember he was basically just a black cat wearing a blue (or possibly teal) dress and somehow emulating a human pose.
I should mention that he didn't really look like the cat I thought he was earlier in the dream. It's possible that he was just really good at disguising himself, but then again it's entirely possible that he was a different cat from sometime in the past, or perhaps a fictional one entirely. 'Twas a dream, after all.
Anyway, I can't remember quite what pointers I gave him. I think mostly just teasing up his fur to make it look more dramatic? I don't know, memory's getting a bit hazy, I actually went back to sleep after this dream. I think the dream ended while we were still there in front of the mirror.
Tl;dr: I helped my cat with his magical girl cosplay.
I figured this dream was short (I believe that was the only part I could remember, even when I first woke up) and simple enough that the gist of it would be easy to remember (I mean, the tl;dr pretty much says it all, right?), so I decided to go back to sleep rather than recording it immediately.
I had at least one other dream in the interim (kind of interesting, with girls and witches and a murder mystery and a coven of witches and park benches and human sacrifice and sassy, sentient crystal balls), but eventually I found myself back where I started, in the front yard of that fictionalized family home, talking to my mother, at night.
I started excitedly telling her about my dream from earlier, since it was a pleasant dream and involved the cat. She cut me off as I started, complaining that my mentioning the cat's name would get him excited. I had no idea why she would find that upsetting.
Sure enough, I think I heard him somewhere in the darkness, so I turned in my seat and called him. He came trotting over through the shadows, but bizarrely, my mother became angry about this and tried to chase the cat back inside.
There was a bit of a commotion in the dark ahead of me and I demanded, feeling quite shocked and confused by this, "what did you do?!"
"Gave him a smack," was my mother's reply.
I jumped up from whatever I'd been seated on. I was seriously WTF-ing at this point, not to mention angry, but it got worse.
My mother continued chasing the cat, who I got the feeling was as bewildered by all this as I was (he hadn't fled very far), and through the darkness I was pretty sure I saw her even throwing a kick at him.
I joined in the chase, pursuing my crazed female parent into the house whilst shouting at her to stop.
Everyone rushed inside and she managed to catch the cat in the kitchen (which appeared to be based more clearly on her current house), dragging him up onto one of the benches to rain blows upon him.
Her expression was manic as I rushed to put a stop to this, and as she changed her grip on the poor feline to grab him about the neck, seemingly to break it or strangle him, I feared I would be too late.
I finally cleared the kitchen floor and slammed into her, possibly fist-first. My mother turned on me, and it was around this point I realised it was a dream. Her face was demonic, eyes blazing and her mouth twisted out of all proportion into this wide slash filled with huge, white fangs that might have seemed cartoonish if they weren't so terrifying, and with clawed hands she grasped at my neck.
Having realised it was a dream, I frantically tried to wake myself up, something I can usually do without much difficulty. It was taking some time, though, and as her newfound fangs prepared to tear out my throat I had no choice but to headbutt my demon-mother in the face. Twice. Three times.
Funnily enough, my neck was still sore even in the dream from the headbanging I did last night, and I began to doubt whether I'd be able to fend her off long enough, but then finally I wrenched myself back to wakefulness, chest pounding.
Huh. I guess even dreams that you know are dreams can still be frightening.
Tl;dr: I began to tell my mother about my earlier dream, but she got bizarrely mad at the cat and chased him, seemingly going onto a berserk rage and trying to strangle the poor cat, and when I stopped her she turned on me, apparently having become some sort of horrifying demon with fangs and claws.
I kept her at bay with a series of headbutts until I could wake myself up.
It is now 6:41 in the morning, so I hope at least someone enjoys these bizarre dreams.