"Can i give it to you tomorrow?" you ask. "I gotta test this thing at school"
"Sure man" replies your bro. "you have fun" he grinned, before menuvering out the door.
"hmm, having shoulder and chest boobs looks fun" you say, before picking up the gun again. Carefully, you aim at your nipples,and fire.
Moments later, you admire your newly grown, round, bouncy basketball size breasts adorning your chest and shoulders.
"Okay, time for school," you say, picking up your bag. You begin to pull on your shorts, deciding to leave your cock and boob balls on display before grabbing a t shirt.
"hmm no way this'll fit, guess ill have to go shirtless" you grin. You wanted to show off your new endowments anyway.
_______
You sat down at your desk at school being careful not to sit on your boob balls. You notice Brad, a buff blonde haired jock, staring at you, rubbing his crotch and grinning. Brad was a homophobic hothead quarterback, but he looked hot in his letterman jacket, even hotter in his football gear. Today his tastes changed.
"Yo Jase'" he called out, "Nice tits man, wanna rub my dick on em" he called out. No one batted an eyelid, as the breastinator made this normal somehow.
"Thanks Brad, have these on the house" you say, putting the gun on auto and firing at the jock. His chest swelled, as his shirt ripped and gave way to beachball sized breasts that flopped onto his desk. Next his hands transformed into soft squishy boobs, the fingers sticking out, before grapefruit sized boobs began popping out the back of his jacket from his wide musclular back in a line down the middle, meeting a big round breast ass which tore through his jeans.
"Aww sweet" said Brad. "Thanks man" he said,rubbing his hand boobs up against himself.
'hmm, who next, you ask yourself, your boner pressing up against the underside of your desk.