You had another idea. Walking back to your bed room. You reach out to your bed to grab the gun. All the while your breasts swayed around on your butt cheek. Checking the size setting. It was still at DD breast size. You have your underwear off as you lowered the gun to point at your left nut. Pulling the trigger you felt weight grow. The breast grew and rubbed agaist your leg.
After it finished growing you aimed the gun at your right nut to grow another breast that evened out the weight. Setting the gun down you felt your dick harden as your felt your new breasts.