I've done a self facial quite a few times and I initially found as soon as the cum was on my face like other posters I just wanted to was off. But the idea turns me on so much
that I kept persisting, now I happily scoop up all the cum that missed my mouth and swallow that too and I do find I shoot my biggest loads this way.
I always have some good porn playing and often wear some pantyhose or stockings.
Strangely if I cum into a glass or something I can never bring myself to drink it no matter how much I tell myself I an going to before I cum. The only way I have been able do this is with a BDSM mistress who forced me to drink it, or lick my own cum off her tits which I truly love doing