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(Medical Experiments, continued by EpicScorpion594...)

You finally reach your limit as you shoot out white-hot sperm into the Doctor’s pussy with a loud yell. You’re still releasing into her as you stop her loud moan with a kiss, a kiss that feels as if you are dominant over the Doctor.

When all the sperm is done shooting out, you look down at your dick and realize that the side effect has worn off.

“Damn it,” you mutter

“Aw, it’s done already? It was just getting interesting,” says Mandy as cum continues to leak out of her pussy.

“It doesn’t have to be over yet,” says Nurse Jenny. She pulls out a backup syringe with extra serum inside of it. You and Mandy look at each other and then at Jenny.

“Oh yeah,” you say.

The End