Not to state the obvious, but model Gigi Hadid is seriously sexy. The older of the two stunning Hadid sisters can look insanely hot even while covered up [1] — though, of course, we also don't mind when her kick-ass body is on display. From her showstopping jumpsuits to her teeny bikinis [2], Gigi's style is out of control [3], and her ensembles are only made sexier with her mile-long legs. Check out the photos ahead for Gigi's steamiest, most scandalous Instagram posts of all time, and you'll see that it's no wonder she has more than 45 million followers.