Something about the bad boy that girls find so attractive. Is it the cigarette pack rolled in his sleeve or the devil-may-care attitude? 

Maybe it's their scent.

Black Phoenix Alchemy Lab "Sin & Salvation" line of scents should do the trick for those who may be less badass than most. 

Whether it's LUST ("Uncontrollable passion and insatiable sexual desire: red musk, patchouli, ylang ylang and myrrh") or DIRTY ("A wonderful antidote to an all-nighter oozing with drunken, addled perversion and debauchery; a fresh, crisp white linen scent: perfectly clean, perfectly breezy"), these scents will add that extra edge you've been looking for.

[$15 - $25, Black Phoenix Alchemy Lab]

[via NOTCOT.org]