Sister nerd - grief in the family: squirt initiation of sister into sluts

Yes, it's not particularly pleasant to have a nerdy stepsister who spends all day poring over textbooks and doesn't even want to watch a movie or play a board game with you. What can I say about introducing her to my girlfriend... or meeting her boyfriend, ahaha, who doesn't exist and is unlikely to ever appear. No, that won't work. A nerdy sister is a family disaster, and to fix that, she needs to go through a sex initiation... with squirting.