“Scrotum is full, vulva is normal, no odor. Did you not ejaculate during sex today?”

“I ejaculated once inside and once outside,” Song Ning answered in detail before anyone else could ask.

“Sufficient semen volume and excellent sperm regeneration ability.” Mikami Rin continued to record, and after finishing, she put the record aside and began to unbutton her white coat. When she took off the white coat, she was completely naked underneath, with snow-white skin and a somewhat thin body. Her breasts and buttocks were not as full as Mikami Yuka’s.

She sprayed some disinfectant into her palm, then held the disinfectant close to Song Ning’s genitals, rubbing every part of it with her hands. The cool disinfectant and her soft hands made Song Ning feel very comfortable, and his penis gradually became engorged and swollen.

“Erectile response is good…” Rin Mikami gripped his erect penis and stroked it a few times. He took out a cotton swab, dipped the end without cotton into the clear fluid secreted from the urethral opening, observed it, and said, “Prostate fluid is normal.” Then he placed it in an empty sample tube.

“Is it done? I thought we were going to get something else…” Song Ning, with his erect penis, felt that going through all this trouble, with both of them completely naked, just to get this sample seemed like an overreaction. But before he could finish speaking, he saw San Shang Lin open her small mouth, stick out her tongue, and lick around the glans. Sure enough, things weren’t as simple as he had imagined.

Rin’s tongue circled the glans a few times, licking the prostatic fluid that flowed out from the urethral opening. Then, she opened her mouth, pressed her head down, and began to swallow Song Ning’s penis, making “gurgling” sounds as she swallowed. In no time, the glans was deep in her throat, and Song Ning’s entire 17-centimeter-long penis was in Rin’s mouth.

Since activating the card-drawing system, Song Ning’s penis has become much thicker and longer, and his girlfriend Zhao Yi’s small mouth can no longer accommodate it. He hasn’t enjoyed deep throating in a long time.

Inside the room, one was focused on enjoying himself, while the other was focused on swallowing. Song Ning’s occasional sighs of pleasure and the sounds of San Shang Lin sucking and swallowing the penis rose and fell.

“Hiss… Your mouth is sucking so hard…”

“Smack smack…”

“It’s been so long since I’ve had my mouth penetrated this deep…”

“Mmm~ Mmm~~”

“It feels like my whole body is being eaten up by your mouth and hole, along with your dick.”

“Slurp…slurp…if it feels good, you can cum! Slurp~~mmm!mmm!!”

Song Ning grabbed Mikami Rin’s head with both hands and began to shake his lower body violently. His thick, long penis rudely went in and out of the female researcher’s mouth. He said fiercely, “Then I’ll fuck your little mouth to pieces and shoot my load into your oral cavity! Hold on tight, I’m coming!”

Mikami Rin’s forehead was covered with tiny, glistening beads of sweat. Her two alluring eyes rolled back, revealing the whites of her eyes. Her glasses had been knocked open, the frame hanging on her lips, and one temple dangling from her face, about to fall off. Dew that she hadn’t swallowed spilled from the corners of her mouth, hanging down in strands. Her face, red from lack of oxygen, swelled and bulged with each of Song Ning’s thrusts.

Just as she was about to faint, she felt a hot, viscous liquid with a dizzying smell flood her mouth.

Rin’s mouth was not large to begin with, and it was completely filled by the thick penis. Saliva filled the gaps. At this moment, a large gush of thick semen sprayed into her mouth, causing her throat to churn and swallow a large mouthful. Then, when she was panting through her nose, some semen accidentally flowed back into her mouth, and two streams of white viscous fluid sprayed out from her delicate nose, choking her and making her cough. Then, a large amount of semen gushed out between her lips and the penis once again.

Song Ning admired her stunning face for a few seconds. Many people say that oral sex is just ejaculation in the mouth. A truly perfect oral sex should have the effect of cum bursting in the mouth and nose like this. If the amount of semen is insufficient, or the penis is too small to fill the mouth, it is difficult to achieve this level.

Song Ning pulled his penis out; if he inserted it again, the female researcher would probably suffocate.

Rin Mikami knelt on the ground, panting heavily with her mouth open. She looked somewhat limp, with a mixture of semen and saliva dripping all over her neck, chest, and thighs. The female researcher’s eyes gradually regained their sparkle. As she regained consciousness, she adjusted her glasses, calmly took a new test tube from her toolbox, aimed it at her mouth, and spat out the remaining semen.

“Ugh… I almost ruined the second sample.”

Song Ning watched as San Shanglin collected the samples, then wiped off the dirt on her body and sprayed alcohol for disinfection, her entire process extremely skillful.

I couldn’t help but ask, “How many times have you done this sampling?”

Without hesitation, Mikami Rin answered, “Number of samples? 3359 samples from masturbation, 513 samples from oral sex, 87 samples from intercourse, and 6 samples from anal sex. We never got a qualified sample from anal sex, so we stopped sampling a long time ago.” While answering Song Ning’s question, Mikami Rin filled in information in the notebook, as if these numbers had nothing to do with her.

The female researcher suddenly seemed to remember something and stared at Song Ning, saying, “Given that you are a newly infected person, after the sexual intercourse sampling, I think it is necessary to conduct anal intercourse sampling. Perhaps this time it will have a different effect! Emmm, the anus and rectum have not been used for a long time, I don’t know if they can be used. In addition, they need to be irrigated. Let’s just do the vagina as well. Two bottles of saline should be enough.”

After filling in the record information, San Shanglin reached out and touched Song Ning’s penis and testicles. “Your stamina and hardness are good, and your scrotum is still very full. We can start vaginal sampling directly. Please wait a moment while I prepare.”