I would if I could. I used to love getting in that self facial position and cumming in my mouth. Just the anticipation would have me cumming in seconds. I never was able to get my cock in my mouth though, too long a torso with an average-sized penis. Even after years of yoga in my 20s I couldn't self suck. If I could, man, I'd probably never date again.
I don't even think I could self facial anymore. Too old, fat, and inflexible.