"I don't want to betray my boyfriend..."—We requested sperm donation via timing method from Koharu (26), a petite, animal-like office lady who is set to marry next month. My name is Kazuto. I've provided sperm to over 50 women across Tokyo and built strong trust-based relationships, prioritizing reliability and proven results. Thanks to this, many women have successfully conceived and gone on to build happy families. This session was recorded on camera to prevent any potential issues. Koharu is an OL getting married next month. Recently, she underwent a premarital health check, which revealed her boyfriend's sperm to be immotile. While she still wants to marry and have children, they mutually decided she should accept sperm donation. However, she insisted on avoiding anything resembling infidelity and initially requested the syringe method. Since the syringe method has a lower pregnancy rate compared to the timing method, and because non-sexual donation often leaves emotional dissatisfaction—essentially sex without sex—we gently persuaded her, appealing to her emotions, and ultimately performed the donation via the timing method. To help her better understand her own body, I carefully engaged in kissing, cunnilingus, and other intimate foreplay. Even as she occasionally showed reluctance, I sensed she lacked full readiness for pregnancy and childbirth. To deepen her understanding, I thoroughly instructed her in performing fellatio. My semen volume increased, making me ready for insemination at any moment. Afterward, I penetrated her in standard missionary position, enjoying the tight warmth of her vagina—similar to what I've experienced with other women. I fully savored her body, her prostate stimulation bringing me close to premature ejaculation. With each forceful slap against her large, shapely ass during thrusting, the sensation of planting my seed intensified. In an almost absurd manner, I made her experience couple-like sex—something she'd normally only share with a trusted lover—and enjoyed a massive creampie. I wanted to creampie her again, but sensing her irritation, I instead had her perform another round of fellatio, satisfying my emotions before climaxing inside her mouth. We haven't contacted each other since, but I believe the chances of her being pregnant are high. I hope Koharu will remember this day fondly. [Scene Details] [Talk] Interview, undressing shoot, shower shoot [Sperm Donation] Kissing, breast fondling, nipple licking, fingering, cunnilingus, handjob, blowjob, ball licking, nipple licking with handjob, missionary position, cowgirl, reverse cowgirl, doggy style, side position, creampie [Last-resort negotiation] Blowjob, internal mouth ejaculation