So yah, WATCH OUR FER UTILITY BELTS, because they'll splorp gooey superhero suits on you and and start dragging you back to your teen years (and no one wants that of course) and make you extremely green.
Also you'll be voiced by Greg Cipes.

Beast Boy belongs to DC Comics

EDIT:
This is the text that should accompany it, written in RP format, so just pretend yall replied in between :V

*slaps a gray utility belt on your waist, which tightens it a few sizes smaller before spilling out black and purple material in thick, snug rivulets, spreading over your torso and legs*

*they flow over and form a tight suit that proceeds to squeeze even tighter on your body, beginning to mush you inward in size, any bodyfat melting away rapidly as your musculature stands out lean and wiry, with your height shrinking mildly as your body contorts. Your hands thicken and you grip them into a fist, as waves of green floow over them and up your arms as the suit swiftly squirms over them and forms a fitting pair of gray gloves*

*your toes clench unconsciously as they extend and grow dextrous and handlike as the length of your foot compresses, green pigment flooding them as the suit grips them and proceeds to squeeze and massage over them forming two big purple boots with a distinct pawprint design on the sole. The inside conforms perfectly to your simian-like feet and and each time it massaged them, you can't suppress moaning out, your voice cracking, becoming higher and scratchy*

*you feel your ears pop, and reaching up to them, even through the gloves, you can feel the tips of your ears stretching like taffy into long pointy elfin ears. With squishing pops your face reconfigures, becoming round and youthful as teenage hormones and energy start to surge rapidly throughout your new body. Your tongue can feel your canines getting longer in your mouth and something about that makes you grin widely to show them off as your hair recedes into a short, cropped cut, green beginning to stain the dark and spreading throughout as your whole face blushes green, before getting even greener with every breath. Your eyes flash into a dark foresty green as they grow wider, your thicker black brows rising animatedly in surprise, nose popping as it becomes a small wide button nose to cap off your cute features.*

*Everything just feels so sweet! Your body is dragging your brain along its descent back into teenagerdom as your raging hormones and intense eagerness is dyeing your mind in green. Your personality becomes extremely lighthearted, friendly and mischievous, loving to play pranks and make everyone around you laugh. Worries and tension wash away as your memories distort and rewrite themselves, your very identity redirecting into this new person, and you happily give in. You shake your head rapidly, ears flapping with every shake as everything old poofs away like a dream. Garfield Loga- ah wait, can't just let out the whole secret identity thing, can you? You're Beast Boy, duh! Your flat stomache growls loudly, and morphing quickly into a dog lends you the sharp smelling senses that tell you there's an AWESOME pizza place just a few blocks from here, and you quickly speed off panting happily*