itch.io

Apparently, after 3 H scenes with the worm, there is a chance to get the big worm. (The more parasites you have, the better chance. Also it doesn't need to be consecutive with the scenes. It will also only appear when you choose to take off underwear when sleeping)

Get infected with a parasite worm from a dog, then go to sleep. first there will be a small worm, then a big one

• Big Parasite Worm happens after 3 events with normal Parasite Worm, but at the same chance of the normal Parasite Worm