Help with research with a new sex virus

Suddenly, she was called to one of the containment room observation areas. She saw some researchers greeting her.

"Thank you for coming. It seems we came across a new virus. We are holding one of the victims here for quarantine." said the lead researcher.

Raina then looked into the window and saw a naked man with a abnormally huge red cock and balls. He looked like he was suffering and in pain.

"This virus only effects males as far as we know and it brings up the victim's libido and makes the penis grow. This causes him to lose all reasoning and he will **** anyone he sees." said the lead researcher. "If he can't release his semen, it can cause him a lot of pain. Now, we need a sample of the victim's semen to work on a cure. We were told you are able to take harsh rapes and can take a load like no other woman so..."

Raina then put her finger over his lips to shush him. "You had me at 'penis grow'! I would gladly volunteer. You should know by now, I can do any hard sex act and love it! So let me go in and do my job."

"Alright then, go ahead. Just get in there and keep all the semen you can in your vagina or mouth. We need at least 1 quart if possible." said the researcher.

Raina walked to the secure entrance already getting her clothes off. She was excited and wet already.

Once she got in, the man turned and saw her. She was already completely naked. He growled and ran right at her. He grabbed her and slammed her down on the floor. He started humping her pussy and was going in without any resistance.

She was moaning as his big cock was pounding her. She could already feel the pleasure of him swelling. "Ah fuck! You must have been really pent up."

He said nothing and kept ramming her pussy hard and fast. His eyes were wide and filled with lust.

Raina wrapped her legs around him and her arms around his neck. "Just get it all out of your systems! Ah Fuck yes!"

He grunted and his thrusting was getting harder and faster.

"I know you need to cum! It's OK, let it out! Ah! Do it!" She moaned.

Then she felt him throbbing. He roared and came inside her. Raina let out a moan as his cock pulsated and sent cum into her womb. Her body spasmed and her own orgasm rocked through her.

Then he started fucking her again.

She giggled. "Once isn't enough? I get you!" She then flipped to be on all fours. "I can go as long as possible. Give me everything you have!"

His hands moved to her breasts and held onto them. His hips kept thrusting and his balls smacked her clit.

She bit her lip as her body shook from the **** of the thrusts.

"Yes! Keep fucking me! Don't hold back! AH YES!" She yelled.

The man growled and came in her pussy again.

This went on for hours and Raina had no problems with it. In fact, she was in a state of ecstasy the whole time.

Even if she was enjoying getting fucked and filled constantly, she did notice he was losing his stamina so he would stop soon.

She was also concerned of other victims of this virus that could be out there. Who knows how much **** and damage it was causing. Also, if it would effect other genders then just males.