What a little lady killer!

On Tuesday, Malin Akerman tweeted this adorable candid of her newest family addition, Sebastian Zincone ... and he already looks like a little flirt with his pursed lips in the pic.

"Did my hair today and this was my son's reaction. I think he likes it ;)," the "Rock of Ages" star joked.

The actress gave birth April 16, and this is the first child for Malin and her hubby Roberto Zincone -- the twosome tied the knot back in 2007.

We can't wait to see more pictures of this little cutie -- click "Launch Gallery" above to see even more celebrity kids!

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