You lead your mother into the garage, and sit her in the left pod, while you situate yourself in the right pod. The pods fill with light, and afterwards, you emerge, a little dizzy, but in tact. The other pod opens, and your own body emerges, with a smile. "Honey, this is so amazing! You're a little genius! Mom runs over, and hugs you. You hug her back, though it feels awkward to hug yourself.
Your mom looks over herself, and even reaches down your pants. Her eyes light up, and she beams at you with a huge grin. It scares you how well she's taking to this, especially when she motions for you to also feel around your new body. You run a finger over the spandex covering your legs, and quickly feel over the crotch area, just long enough to confirm the lack of a penis there (even though you never suspected there would be). She motions for you to grab her breasts. You sheepishly comply.
"Like being a woman, Luke?" your mom says, still with a slight tinge of femininity to it. "Hey, do you remember Freaky Fri-"
You cut her off, "Yes, mom, of course I remember Freaky Friday." You feel like you've heard that comparison a hundred times today. Can't anyone associate your scientific breakthrough with something other than a crappy Disney movie?
"Well," your mom grins, "Let's do that!" You mutter a 'huh?' and she continues. "I want to be you for a day, and go to school and talk with all your friends and learn a little more about you. And you can be me and learn what my life is like! And then we'll be closer than ever before!"
Your heart sinks a little. You really don't want to give your mother the OK to walk around, impersonating you, discovering all of your deepest secrets, but you can't find the heart to tell her no when she's this excited. She did willingly help you with your experiment, after all. Begrudgingly, you agree, and your mother wastes no time.
"Yay! Thanks mom," she winks at you, "I'm gonna' go hang out with my friends!" Your mom skips off, and you're left mortified.