'Comfort' her

You assure her you don't mind. "In fact," you add, "If it just falls out anyway, why not just let it hang out?"
She looks at you in surprise and then down at the carpet. "But you'll be able to see it."
"Maybe I'd like to," you say.
She looks up at you with badly hidden laughter on her face.
"What?" you ask, "You're sexy."
Her quickly hardening cock pops free of her panties, sending her balls out as well.
"Oh, god, your making it worse," she says, trying to push her still hardening flesh back into her panties and looking at you like her dog just wet your carpet.