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Why would you mind?
It started a long time ago when my wife used to give me a handjob in bed. She would aim at my face and when I blasted, I would get a faceful. I would taunt her too, by sticking out my tongue. Her aim was good enough to get me every time. When I jerked off, I would do it too. Why not? It was sexually exciting. The anticipation of a big load of cum flying at my face and open mouth was exciting.
It helps if you aren't turned off by your own cum. My wife broke me of that habit years ago. I have done it while she watched a few times, at her request.