On her face?

You pull out and stand up from the couch, moving quickly to stand beside Krista's head. You jerk your cock over her face and begin to cum hard. You spray her face with your cum, getting some into her hair and then when the initial stream dies down, you aim the rest onto her full lips. She sighs and moans a little in her sleep and licks her lips a little. When she starts to taste your cum, she slowly wakes up.

She sees you standing there and looks down at your softening cock, some cum still dripping from the tip.

"What are you...?" she starts to say. Then she wipes some of your cum off her face. "What the fuck?" she says, looking at the cum on her hand.