 She enters into a sexual relationship with Freddie after dumping Danny, partly because she likes him but partly to get back at Effy.After Emily and JJ catch her having sex with Freddie, JJ accidentally reveals Emily's homosexuality to her, and this eventually awakens her to the fact that her sister is gay.During a party in the woods, Katie tries to be the head of the party but fails due to Effy finding shrooms and her closeness to the rest of the gang.