To be clear, Jada didn't say she had nothing to do with teaching Ellie about sex, she said she had nothing to do with talking Ellie into having sex with MC. The conversation was about them having sex and MC says something like 'I hope you didn't pressure her into doing it' and Jada said "I had nothing to do with that. Also, show me one 18 year old girl that doesn't know at least that much about sex, no matter how repressed (after all, they don't say that she turned into this wildcat or anything, she simply sits in his dick after sucking it.) The computer thing I'm not sure about, did his laptop for sure have a password? I don't remember.