The girl giving him a BJ out of nowhere when she said it was her first time doing it was kinda strange and felt out of place, like author just did it for the sake of some eacchi or so. Now they gonna add drama with the guys, i hope he won't be a push over working for their survival. He got an upper hand here so he need to use it and act as a true leader. These guys was always making fun of him at school so they should know their place now in "his" enviroment.