The guy agreed to participate in medical research. After the vaccine, his sperm should be super strong. He enters the office and is greeted by a sexy blonde. After several manipulations, the girl injected him with medicine. Now it's time to test the semen. You need to get a sample. The nurse did not think long, she began to suck the patient's penis. Minutes later, he cums, her mouth filling with cum. She starts to swallow it. Her belly fills up very quickly and sperm flows through her mouth. The girl begs him to stop his cum. She's really full. She is overwhelmed with different feelings. She is scared and very pleasantly surprised by the result of the medicine.