#genetic-mod
8 stories tagged with this.
A military doctor reflects on a genetically engineered giant whose oversized penis required medical attention after intercourse with his nurse.
A scientist secretly uses her male co-worker's blood in a DNA rewriting experiment with unexpected results.
At a futuristic academy, identical twin hermaphrodite sisters maintain an incestuous dom/sub dynamic within a family that shares modified bodies and unorthodox desires.
A lonely tradesman seeks sci-fi penis enhancement so he can finally experience the ultimate treat—his own mouth.
A man undergoes genetic penis enlargement and pleasures himself while watching a porn video during the growth period.
Alien parasitic worms rewrite a teen couple's bodies and force them to breed while harvesting their reproductive fluids for consumption.