What do you think about 'straight' men Kissing ? ( Right or wrong?)

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 Is there be anything wrong with two seemingly straight men kissing on the lips? Photo on the right shows Diddy and Rick Ross within an embrace, like they certainly were planning to kiss each other. Rapper 50 cent posted the pic on his instagram page suggesting the rap heavyweights are gay. When fans blasted him for posting it and suggesting something like that , he quickly deleted the pic.

Photo on the left shows'12 Years a Slave'director Steve McQueen and star of the movie Michael Fassbender kissing on the lips after winning Best Film at Sunday's Oscars award. The men are regarded as straight men with ladies in their lives (Steve has two kids with long-time girlfriend, Bianca Stigter. Michael includes a girlfriend) however it didn't stop these folks from insinuating they're gay because'no straight man kisses another man on the lips '.

Personally, I wouldn't be confident with some girl kissing me on the lips, however for someone who's confident with it, can it be a big deal? Can't two straight men kiss one another? Pls share your thoughts..