Miley Cyrus is at it again showing off her nipples in see-through bras and baring her midriff on Instagram. This time, however, she isn't the one posting her sexy photos. It's her 23-year-old boyfriend Cody Simpson. Now that's a good boyfriend! He posted pics of him and his 26-year-old pop girlfriend "staying in" onSuper Bowl Sunday. Aw, how adorable, and by adorable I mean hot.

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Once again, Miley looks great. For as much as she's tried to clean up her act, Miley proves she's still a bad girl at heart with this black lingerie look. She looks great, but she looks even better when she sits on a ball...a wrecking ball. See what I did there? I made an excuse to revisit my favorite clip of Miley's: