[NTN] Medical Mystery - Day 21 (Patreon)

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Coming from a medical professional, the words "That's interesting," or "I didn't expect that," aren't exactly what I wanted to hear. Apparently the growth is getting a lot more erratic. I only grew a couple inches in length overnight, but my balls filled a lot more than usual, even considering the increased growth rate. I can feel them gurgle and goosh as the cum sloshes around, and they're aching to release. In her medical opinion, she said that while it's not technically unhealthy, I really should stop the subathon and just cum already. I didn't have the heart to tell her that thanks to Kiriko I literally CAN'T cum, though I'm starting to get a little worried. Before I had the spirit tags, the responsibility was all on me and I could pull out (heh) of the challenge any time, but now it's all on a supernatural mystical force that I can't commune with to control when I can cum. Maybe Mercy's right, after all it's getting really hard to keep up with the day to day. I'll keep going for a few more days, but if it gets much worse I'll have to ask Kiriko to break the seals. 

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Day 21! Life decided to punch me below the belt and I didn't have as much time as usual to make this pin-up, so it's a bit of rehash/filler from last week. I'm planning on getting ahead of schedule for the upcoming weekend, and I'm excited for what the next few days will bring!