No.

"Please pull out, Mr. Kataoka," Chiha begged, looking over her shoulder while her hair flung around wildly from the pummeling he was giving her. She wasn't worried about getting pregnant since she was on the Pill but she did not want to contaminate a sample if he flooded her womb his cum.

Despite his warning that he felt his balls tighten, signalling the imminent explosion of his balls, Kenji was too enraptured with fucking the beautiful young nurse's excruciating tight pussy to stop. He dug his fingers into her ample ass cheeks while loudly grunting and churning his cock feverishly in and out of her cunt.

"Please pull out, sir!" Chiha pleaded again. But when she looked back and saw his handsome, youthful face contorted with painful, erotic pleasure, she could sense desperation on his hard thrusts. She suspected that the stress of trying to impregnate his wife must have taken a toll on their enjoyment of sex -- no wonder he was taking so long to release! She bit her lower lip to suppress a cry and gripped the chair's armrests as he pummelled her cunt harder and faster. She decided to let him enjoy ejaculating in her, which came with the side benefit of allowing her to climax too!

"Cum in me, Mr. Kataoka!" Chiha cried out, tightly shutting her eyes as her body was being overwhelmed by her own impending orgasm.

Her words startled him, suddenly snapping him out of his rage of animalistic lust. He paused his thrusts to ask, "Are you sure?"

"Yes, Mr. Kataoka," she smiled to reassure him. "We can still get a sample but I think it is more important you have a proper release instead of holding it back."

Kenji didn't tell her about his problem but he figured that working at a fertility clinic she had encountered many men with similar problems like his so it would not be difficult for her to surmise that he was having trouble ejaculating under the pressure of getting his wife pregnant. He really needed to fuck her and needed to cum inside her even more to finally relieve the pent up sexual stress of the past two years. "Okay, if you think it is the best solution, nurse."

"Hai!" she nodded with a smile.

Letting his lust engulf him again, Kenji grabbed her ass cheeks and spread them apart so he could watch his cock slide on and out of her pussy.

"OhOhOhOh," she whimpered, digging her nails into his armrests, as she resumed her climax.

Undeterred by her stiffening body beneath him, Kenji continue to hammer away at her pussy as it spasmed and clenched his pistoning shaft.

"Please cum in me!" Chiha begged, flinging her head side-to-side when he brought her from one orgasm to the next.

"Hai!" he growled before releasing the first jet of semen into her pulsating pussy. For a whole minute he pumped load after load of jizz, coating the walls of her womb, before finally emptying his balls with a loud relieved sigh.

"You did good, Mr. Kataoka," Chiha panted. She had never been fucked by any of her lovers before as furiously as Kenji had, so now she had no regret of her decision to let him cum in her.

"Arigatou," he whispered.

Worn out from the long, hard fuck, Kenji remained embedded in her for another minute before they regained enough energy and composure to pull out. He pushed himself off of her and stood up with a still hard cock, slick with both of their cum. Feeling her eyes on his erection, he blushed at the embarrassed at his inhuman virility and grabbed the sample jar from the counter to hand it to her. He watched her nonchalantly squeeze of some of the leaking semen from her pussy lips into the jar.

"The sample may be contaminated," she noted, examining the almost full jar of sticky white cream. She was very impressed how much he had cum in her and in addition to amount he had sprayed the television and wall.

"Does this mean I need to give another sample?" Kenji asked. His cock unconsciously twitched at the suggestion.

"Yes," Chiha replied with a grin, sitting down on the chair with her slender thighs suggestively spread apart to year him with her wet, reddened snatch. "That is if you want to."