He aims and puts on the gender attachment and fires at you. In seconds you feel yourself tingling all over.
"Jack! What are you doing..." you gasp.
"Just having fun with my new toys" he said, obviousy not refering to the gun.
You watched as your chubby man boobs started pushing out and filling up becoming actual boobs.
"AH!" you shout, but the mental effect kicks in, calming you down as your hips expand, your waist thins (only a little) and your hair grows longer. Soon you feel your penis vanish into what is now a vagina.
"I'm a girl" you say, actually thrilled about it.