There's a glitch that if you wear a bikini, tan until it's night, then talk to the guard without changing, (I've taken the drugs, can't say whether or not it would glitch without) eventually when you wake up at home, from that moment on, you'll be wearing your bikini outside (visually your robes until you use magic on screen). This prevents you from using the Bathhouse, for instance
What's more, if you did this gitch, or turn into a werewolf, while topless, you'll walk around topless