You find a needle laying around, after picking it up and examining it you see it has a label on it. The label says, "Nipples:Puffy". For some reason you don't know why, but you take off the protective cap on the end of it. This is probably a really bad idea, but why not try it? There are reversal drinks, so there is no worry.
You can see two marking on it. You assume it's telling you to put only a certain amount in each nipple. After pulling up yoir shirt and slowly injecting the fluid in you feel funny. As the liquid enters your nipples they feel soft, sensitive and look swollen. You finish up your left nipple and watch as it becomes large and puffy. It's about an inch thick by an inch long. Time to do the other. You inject slowly and remove the spent needle. It's placed in a disposal bin and your right nipple becomes the same size and as puffy as your left nipple. Your shirt covers then. But the fabric brushes against your nipples and arouses you.