<human>: Could you distill the essence of the text into 1-3 sentences?

I am a 19-year-old female who is a sophomore in college. I live on campus, I am fairly social/friendly, and I have a boyfriend who I've been seeing for over a year. Pretty normal. My problem is that I am constantly referred to as being "innocent" and a "goody goody", and I have been for most of my high school/college life. It frustrates me so much when people I barely even know label me as this. It causes them to either a) ignore me b) feel like they have to be guarded about what they say around me or c) pick on me about it. I consider myself to be a fairly 'good person', but I don't completely understand what about me gives people this impression and, more importantly, how I can stop this from happening. 

I frequently find friends/acquaintances of mine to be shocked when they hear me tell a story, crack a perverted joke, swear, etc. I always get a response something like, "I never would have pictured you to _______!?!" This makes me want to scream. I will admit, I am probably not your typical college girl as I don't find constant partying to be the greatest thing ever, I don't smoke like 50% of my fellow students do, and I am a Dean's List student. HOWEVER, I am fairly outgoing, my close friends would tell you I am goofball, I think dirty humor is hilarious, I CANNOT wait until my 21st birthday, etc. I am not sure how I can shake this persona of being "innocent". I just really need some advice so that I don't lose out on friends/experiences, and maybe some ideas of how I can be a little more badass?

Any thoughts, Reddit??
<bot>: – People don't take the time to get to know me because I give off vibes of being a 'goody goody'. I would love to change this.