Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Okay, I know this sounds weird, and not really "fitting" for the sub, but it's been haunting me all day.

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My sister (20) and I (Male, 18) live together with our (extremely christian) family because college is expensive, and apartments are too. We're kinda close, I guess, in that weird sibling friendship way. We have a lot of similar interests, we talk a lot, etc etc, normal sibling things.

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Recently, we were alone in the kitchen together, when out of the blue, she asks me if I masturbate. After that question, she started telling me about her plans to buy a vibrator, then proceeded to warn me that if I told anyone, she would "shove the vibrator down my throat." 

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So, fast forward a day, and she gets home from the mall and \*shows\* me her vibrator she bought (thankfully doesn't demonstrate it in use, however), thus putting me in the awkwardest situation I've ever been in. 

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Am I the Asshole for feeling like she should have kept this to herself?

thinking that it was wrong of my sister to tell me she bought a vibrator