Good but not mind-blowing:
Legend, Prodigy and Champion, Marie Lu
Here's three slices of uber-popular, post-apocalyptic YA for ya.
I think of Marie Lu as an Ideas Writer, rather than a wordsmith. I didn't find myself chewing a phrase thrice because it was pretty or clever. I also wasn't wholly absorbed in the story, but I was invested enough to read all three books. Average dialogue, simplified science and politics, but a fairly strong romance and quick and easy read.
Language: (daggy) euphemisms are used, Sensuality: Plenty, and the actual deed is done (we are told but not given vivid descriptions).
Dangerous, Shannon Hale
Hard Sci Fi. From Shannon Hale. I do not kid.
I enjoyed this more than Legend. I enjoyed the dialogue, humour, pacing, and characters veddimuch. There's some crazy teenage insta-love, a bad triangle, melodrama and logic-lack here, but I forgave, and read on quite eagerly. I went in knowing nothing about the book except that I trusted the author and that this wasn't fantasy. While there are holes and I don't think this work is as polished as I expect from Hale, in terms of Hard Sci Fi, it's a fun read.