Patrick Schwarzenegger's sister, Christina. Yep – Miley Cyrus' boyf Patrick has a 23-year-old sister who is reportedly dating Braison Cyrus, Miley's brother. As in, Miley and Patrick's siblings are dating. As in, two sets of siblings = one slightly awks double date. After a preliminary cyber stalk, we can tell you Christina's a bit silent on social but Braison has an eye for Miley-esque Insta-weirdness, so this may well work out, and 2015 may be the year of the Cyrus-Schwarzenegger takeover! Though we have to say – if we're thinking about #FiveWordsToRuinADate then 'your sister's seeing my brother' is pretty high up there. 

As obsessed with Patrick and Miley as we are? Check out their love story, here.

See more fashion news.