A mod for the Unofficial Homestuck Collection
For every pesterlog/dialoglog that John speaks in, a random line of his is replaced with "i have an erection."
All of the text is replaced after reload, so to re-randomize you just press CTRL+R
Download the mod by either downloading it directly OR clicking the green Code button and downloading as a zip, then extracting it.
When it's done downloading, open the Unofficial Homestuck Collection, head to the settings, then scroll down to Mod Settings and click the link "mods directory".
Now, just move JohnsErection.js into the mods folder it just opened.
NOTE: You must have the v2 or higher of the Unofficial Homestuck Collection, as the older one does not support mods.