The deepthroat of space can be a wild and interesting environment full of surprises. You never know when an extra-terrestial lifeform has hitched on board, continuing to live by its instincts. Moreover, you never know whether they are friendly or hostile. Riley is not taking her chances on them.

"Ohh! You are way too hands-y, mister! This booty is only for me and my bunk mate. I may be a super freak, but I'm no slut! Time for you to go, xenocock!"

To keep aliens away, she has found fire to be a surprisingly effective deterrent.