I am 21 years old, and I sometimes masturbate. Sometimes I use the round handle of a brush to do this. However, the handle has a hole at the end (I don't even understand why that's there in the first place...).
Sometimes when I masturbate like that, it feels like there's air when I'm moving, but I don't hear anything coming out. Is that dangerous? Should I stop using that technique to masturbate?
I've heard about something called air...embolisms, I think was the word. Can I get one of those using the handle of a brush that has a hole in?
I'm a little afraid of this, so any help would be much appreciated...



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