Look carefully at what she said when you are on the Bench. (Waking her up, and letting her sleep, actually modified the dialogue at the end, its not only for romantical purposes)
Hey, I've got a really dumb question but I found no answer on google or anywhere else but, when you get crotch locked by the parasite, how do you do to unlock them ? Or do we need to finish the game with it ? Because I want everywhere on the map and I found anything to do for unlocking it..
