My boyfriend has started posting shirtless selfies on his Snapchat story. Should I be concerned?

So my boyfriend is kind of a flirt, I've always known that, but he's never been big on Snapchat and rarely ever uses it. Like he never posts stories and I'm one of about three people that he snaps regularly.

However, lately he's started posting stories of himself shirtless in the mirror or giving sexy faces. I asked him about it playfully and he shrugs and won't say anything about it.

Should I be worried?
My boyfriend has started posting shirtless selfies on his Snapchat story. Should I be concerned?
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