Wear her completely

Seeing your mom in front of you, basically reduced to a Halloween costume from Ikea, the only thing that comes to mind is "I wonder if this would fit me", so, you decide to put her on. Unzipping her torso, you step into it and slide it up, seeing your body grow to that of a completely smooth woman gives you a tight erection. Next you slide the boxers up, feeling how they are incredibly tight on you, squeezing your hips until you snap the band down on around your waist. The moment you release them the difference between her torso and her hips disappears, and seeing them basically merge into her torso, you impulsively move your fingers across your newfound slit, only to be overwhelmed with pleasure.

"I should probably wait till I'm done,", you think, moving away your hand to lift up her breasts, shifting it above the suit, you eventually find where they fit, and are amused to see them jiggling with every move. Next you slide on her legs, getting them fully on, you realize that where her legs stop is just above her hips, leaving no seam in between her legs and shorts, sliding her small feet on, you feel each toe fit perfectly inside of you mom's, and the seam gives the same result as it requires incredible precision to take apart her leg and foot. Next, you slide on her arms and hands, feeling your own shrink down, you decide to check out your new form before putting on her face.

Standing up is a bit of a hassle due to your new breasts, but you prevail and eventually reach the bathroom with her face and head in hand. Standing in the mirror, you see what you could only describe as your head on your mother's body, as there is literally no difference between your mom and what's below your neck, moving around, your hands automatically move to your breasts, bouncing them up and down like jelly filled balloons. Though your own face on her body is creeping you out, so you decide to finish your new look. Picking up her head, you slide it on before preparing her eyes.

Lifting up her eyes, you see two slits on the back and you align them to your own eyes. Now when you look in the mirror the top half of your face has became your mothers, with her own beautiful eyes staring back. Preparing her mouth now, you see an odd protrusion on the back you didn't see before, not caring much about it you slide it into your throat and put her lower face on. As you involuntarily moan, the intruder seems to disappear, and you realize that it came out in your mom's voice! "I really have became my mom. hehe... Ahem, oh honey, you look so cute today, I could just eat you up! Or perhaps, wear you?", you say into the mirror, seeing your mom speaking back, "Oh wait, I'm so sorry! I forgot I was already doing that!" you finish chucking to yourself and turn around to walk out, but before you leave, you wait a second to check out your back, and your heart skips a beat because the zipper disappeared, though moving your arms across it fills you with relief as you realized that it was just hidden by the band of your breasts, though that does mean nobody would be able to tell that you are actually a man wearing his mother like a costume. With the knowledge that nobody would be able to tell the difference from you right now and your mother, you feel your body become wetter.