White stuff in arousal fluid?

My arousal fluid has white globs in it.

I’ve been sexually active for about a year, this started happening a few months ago and happens every time I have sex. I don’t think it’s an STI because I remember it occasionally happening before I was sexually active.

Does anyone know what it is or why it happens? Have any of you guys ever experienced this?

I’m not worried, just curious and it kinda grosses me out because I don’t know why it’s happening. My partner thinks it’s female ejaculate but I have never heard of that and I can’t feel when it happens.