A womanizer? Like he digs women a lot, checks them out, flirts, has lots of girlfriends, never at a loss to find some companionship? A ladies man? Well, shit, of course. That's part of the Kirk legend. I bristle when he's characterized as almost a male whore, an uncontrolable horndog. He doesn't get laid by a dozen green women every week, but he is absolutely a guy who loves the ladies. He's a 1960's TV leading man, the hero of the series and a bachelor. He also exploits his looks and charm to get missions accomplished and his crew out of danger when women are involved.
Nothing wrong with this, he's James Fricking Kirk.