For me, it has to be this: i was at school, and my buddies were in a different room. So i wanted to walk in there and be like "ayy lmao" but i see what seems like one of my friends giving a blowjob to my other friend, i stand there and say "what the -blam!-, dude!" And she stands up and says "oh *redacted* asked me to tie his shoe for him." After that it was awkwardly silent for the rest of class.
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It sounds like you just follow a couple around appearing at akward moments.