"Watch it!" you say as a white light shines on the wall.
Mel is startled and drops the light, it turns off before it hits anything. "What?!"
Your hand is stretched out. You recover and catch your breath, going to sit next to her - putting an arm around her and taking the flashlight in your other hand. "Do you recall me changing you to being more sensitive?"
"More sensitive than I am already?"
"That is what I mean, you haven't always been that sensitive, I shined the light on you without you touching it. You didn't notice the change." Mel put a hand over her crotch. "I shined the light on me and you didn't notice."
Mel looks up. "We should go back to normal?"
Thinking about it and seeing how she feels a little vulnerable, you say "yeah, maybe." The both of you sit there, her still feeling the afterglow and you with a big dangly bit and upper body strength you feel like you don't own... because she doesn't know about that...
Breaking the silence, Mel asks, "about that white light. What do you think it does?"
"Could do anything, but maybe white means clean in this instance. Maybe it will undo changes." Mel looks hopefull but scared, so you offer to go first and she looks relieved.
Standing up again, you take the light and point it at your penis (not looking at Mel, who is probably thinking something like "of course" or "boys" - you know her well) and press the button for the white light. Your penis goes back to normal, not seeming as small as you were afraid it might. You dash the light over the rest of you and look up to see Mel clutching her head, laying on the bed. As you run over, the light is off and she immediately feels better. Holding her anyway, kneeling at your bed with your arms around her shoulders, you ask "Are you OK?"
"As soon as I say the light hit you I.. it didn't work, though." You are taken aback and look down. "You didn't change."
You obviously did, so this must be something... "I think if you aren't holding the light but see the changes it hurts. I definitely did. Whatever m..." (magic is a strong word, but it fits) "whatever magic that makes it so people don't notice must hurt when it has to fight."
"Like when we both changed my boobs." Mel smiled.
"Yeah. Hey do you want those gone?"
"We can always bring them back," Mel winked.
You smile and sit her up on the bed. She complies when you also open her legs to reveal her slightly more engorged mons and associated labias. Closing her eyes, she nods and you shine the light, watching her go back to normal. You rest the light on her knee and shine it at her upper body, giving you both a headache and Mel back her C-size breasts. She uncovers her eyes, having felt that change, and picks the two globes up. She feels them with familiarity and nods.
"Blank slate." You say.