Holding back a laugh, you rush downstairs to see the results.
Amy is standing in the foyer now, looking at her reflection in the mirror. She has an expression of shock and dismay.
"Mom, what's wrong?" You ask, smirking. You really want to torment her more, to really build up the prank, but you can't help yourself. You start giggling, then break into full laughter.
'Your mom' narrows her eyes. "John, what is going on?"
Amy is very smart and quick-witted. She immediately guesses you had something to do with her transformation and presses you for an explanation. And you quickly point out that it's not permanent, that you can change her back at any time.
She gets a thoughtful look. You know from experience that means Amy is getting another one of her 'brilliant ideas'.
Hey, John", she says to you," I think it would be kinda fun if I pose as your mother for a little while? Shes out of town for awhile, isn't she?"
"I dunno...", you stammer
"Come on John. Think of it as quality time together. And you owe me for this prank. Let me do this and I'll call us even," she adds.
"Well, alright.", you answer reluctantly. You feel like you're somehow losing control of the situation.
"Wait here, I'm going to go change", Amy tells you.
"Uh, what...?" You give her a confused look.
She smirks. "I've finally got killer bod and I want to enjoy it, son," she says, emphasizing the last word.
You shudder as your 'new mom' saunters up the stairs.
After a half hour or so
It's hard for you to resist her but you don't want to give everything away at this point. So without giving much detail, you tell her about the site that you used to change her.