I do not watch TV but I do occasionally listen to songs on youtube. There has never been a mention of any threesome in any song and I am quite assured of my having a firm grip on reality which has been confirmed by my T... if you hear threesomes mentioned on everywhere, either yyour imagination is playing a cruel trick on you or...

... or you are in psychosis. You describe a weird worldvview and seem assured that everyone shares it and that everybody hears of threesomes on the radio. It eerily sugggests thepossibility of a psychosis so I would engage a professional. Maybe you need just a short period of time on antipsychotics to suppress your imagination and allow you to think more logically.