Keeping this in mind I started playing with my Lelo Ella and had that feeling. I pushed and it felt much more "plush" and squishy inside than usual, and sounded much more liquidy. When I pulled Ella out there was some really thin liquid dripping off of her. I thought initially it may have been my normal lubrication but the liquid dripping off of Ella was like the consistency of water. I felt around and there wasn't much other fluid except a tiny bit of that thin liquid that had dripped out.
I inserted her again, thrusting vigorously and pushed when I felt the urge. Then I felt a quick gush of warm fluid. It smelled odd not exactly sure what like though. Pee never usually feels like a gush, more like a steady small stream, haha.
To see if it was pee I went to the bathroom and was able to pee a normal amount. I kind of feel if I peed instead of squirted I would not have been able to pee a normal amount when going to the bathroom right after. I noticed that my pee was a little yellow. Then I took a paper towel to pad down the area on the bed to see the color. It wasn't yellow, but again I can't quite place the smell.