Why would OP's wife not just sign herself up if she was going to run? Or realise something was off when her partner told her that they'd done it for her. "Hello, I'd like to sign my wife up for this run. Oh no, I won't be participating myself." Feels kind of weird. But this a 4chan post so can't possibly be fake or gay.
This is almost exactly how I found out my ex-wife was cheating. She bought a ticket to a concert and then freaked out when I bought one too. Why wouldn't I want to go to a concert with my wife? She said it was just going to be a thing with her friends from work. When we arrived there was exactly one friend from work. A guy friend.
thrust distance per coitus session: 13 cm x 300 thrusts x 2 (accounting for insertion & removal) = 78 m
coitus sessions to accumulate 5 km of thrusts: 5 km / 78 m = 64.1 -> 64 sessions of coitus
So OP’s wife would have to fuck 64 times to accumulate 5 km of cock. Even with amazing refractory periods, that’s still a minimum of 32 guys running a train on her.
Edit: working through this reminded me of that episode of HBO’s Silicon Valley where they started talking about handjobs and hotswapping dicks and hit on middle out compression.
Sir I think you are forgetting that you do not pull the pens completely out with every thrust unless you want to snap it off by accident. I think a 1.25 multiplier to your calculation is therefore necessary.
Odds are high that is it fake but it is absolutely based on a true story. Might have been a husband wanting to do a 5k or a canoe trip or something else instead of a wife, but I've known plenty of people who get pissy when their significant other wants to 'intrude' on their hobby.
Women are shitty communicators. I tell my wife this all the time. Just because you are talking doesn’t mean you are communicating. Men created TCP, women created UDP network protocols.
Communication requires two parties to understand and come to a consensus, most women are making announcements, not communicating.
Also, women tend to think they are more emotionally mature than men, but are generally significantly stunted in their emotional development. Flip the script, how do you think his wife would have reacted if he called her fat and then talked about a 5k then cried and threw a fit when she signed up? Most men would have been happy and excited, but most men wouldn’t have also gotten past calling their wife fat without a divorce.
Edit: lol the white knighting here is crazy. You all will never get laid. Hopefully your wife’s boyfriends are at least having a good time.