A hermaphrodite

You look down over yourself and realize you can't see anything over the mountainous breasts you have grown! With panic, you use your hands to find that your cock and balls are still there. You also find a pussy beneath your balls!
"What's going on?" you ask in a feminine voice.
"We used my DNA to modify your own, to make you like me. You took to it very well. Look at how curvy you are! Nice gigantic breasts and wide child-bearing hips...I can't wait to knock you up!" Gemma smiles broadly.