Great feeling cumming in anyone's mouth. My wife really loves when I cum in her mouth. She's even asked me to pull our during sex so I can cum in her mouth.
I enjoy the feeling of blowing my load in a mouth more than inside her vagina. I do both but prefer to pull out of her vagina as she takes me into her mouth to taste herself and swallow my cum load.
I dated a woman who enjoyed me releasing in her mouth. She was not on birth control pills so it was the safer option. Her vagina however just felt extra pleasurable.