Finn and his friend had come to a conclusion that they both fap too much. They had spent too much time watching porn and masturbating all day long when there's nothing better to do. Work had been slow for them both, and just things being boring in general. So, they came up with a challenge: not to fap or orgasm for a month. For such horny and sexually driven characters such a thing would be quite a challenge. But they knew other people do it, so what could possibly go wrong! They agreed that at the end of the month, they'd have a sleepover with lots of fapping and porn as a reward.

Well, about a week later, they met again as Finn had invited his friend over. However, Finn was all flustered and awkward. Finn tried to brush it off by saying he hadn't slept well. They spent the night boozing and eating snacks, watching movies and other lazy things. All the while Finn was adjusting his sweatpants and finally his friend asked if something was wrong. Slowly, Finn took off his pants, and it became clear why he had been awkward: his dick had grown by quite a bit. His friend pulled the underwear down as well, and immediately started throbbing and growing erect. The balls were swollen too looking insanely heavy.

His friend fetched a measuring tape on the spot and asked Finn to measure it. "Umm... I-it looks like it's past the 20 inches mark by now. And it's still getting harder..." Finn was blushing madly at the sight of his now almost hyper-scale shlong. His friend chuckled a bit and sat next to him, touching that long cock gently. "Mmm... Too bad that there's this challenge we made up. Otherwise I would suck you on the spot. But now, it'll be really interesting to see you at the end of the month. I'm now looking forward to that more than jerking off myself, haha!" He gave a grin and left the cock alone, which was still standing erect and throbbing with need, precum dripping in a steady stream.