Has Kylie Jenner, 17, gone too far in this selfie?

Another day, another Instagram bikini snap - is anyone ever going to tell the celebs that it's October?

This time it's Kylie Jenner who's flaunting her perfect figure - and flashing a fair bit of bum cheek while she's at it.

Posing seductively against a stone column in her luxurious garden with her long, dark hair loose around her shoulders, the youngest member of the Kardashian/Jenner clan looks incredible.

With the rather mysterious caption: "You were my sun", we're not quite sure who, or what, Kylie is referring to - but the arty black and white shot will certainly get heads tuing.

Just days ago, Kylie was spotted in a similar looking swim suit, as she posed for a mirror selfie in another fabulous garden.

With the caption: "still feels like summer to me", it seems that the student hasn't caught a case of the back-to-school blues as she continues to parade around in next to nothing - while we fish out the winter coats from the back of our wardrobes.