Confused by My Roomie's Game Night Invitation

So my roommate invited me over last week for what she called a 'game night'. Now I know how that sounds, but it was nothing like that at all. We got to her place around 8 PM and everything seemed normal enough, snacks, drinks, some board games laid out. But then came this bizarre setup she had going on in the living room. She had a bunch of candles lit (and by 'bunch', I mean maybe fifty or so), dimmed the lights, put on some mood music with heavy bass, and then asked me to pick one card from an oversized deck. Each card had some kind of dare or role-play scenario written on it. At first, they were tame, like, 'kiss your partner on the cheek' or 'do a funny dance'. But halfway through, things started getting... weird. She handed me this card that said something along the lines of 'Pick up your drink and act as if you're sipping it while actually drinking from another roomie's neck like it's a straw'. I was genuinely confused. This wasn't at all what I expected. Now, to be clear, I'm not prudish or anything, but this felt out-of-place for me. The whole vibe of the night shifted completely. We moved onto some 'blindfolded touch and feel' games with random household items and a lot more suggestive playfulness than you'd expect at an undergrad game night. By the end, I felt pretty weirded out, not uncomfortable per se, but definitely confused. The next day she seemed to think everything was fine, which made me question if I'm being too uptight about it all or if maybe there's something off that I’m missing. So here’s my question for everyone: Am I the asshole for feeling uncomfortable and questioning the night’s events? Or is this just a weird thing college kids sometimes do to shake things up? Would love some insights.