Take the two remaining thugs up to the VIP room, get them in a compromising position, and interrogate

This mention of a mysterious owner catches your interest. Maybe you can shake this person down for a little information in the future, and threaten to make life uncomfortable for them if they don't pass things they hear along to you. Instead of just forcefully trying to take these two on (even a 10% chance of getting overwhelmed again is too much - your reputation as a starting hero is already in jeopardy, here), you decide that you can handle this in a more subtle, fun, teasing kind of way.

"Aww, come on. Surely big boys like you don't need to be playing with a girl's toys? Hmm... I sense that you're gonna be tough to convince, Mr. 'King'. But I will tell you that there are already some police assembling out there. If you don't want to get caught up in the dragnet, my two strapping roosters, you ought to take me up to the VIP room where we can discuss you returning my gear... politely." you whisper the last word with a seductive twinge.

Motivated by either the sexy pose you strike or the need to get away from suspicion before the police cautiously take control of the club and drag all those guys you just beat down off in handcuffs, the two young men lucky enough to get out of the brawl with all their teeth and bones intact exchange a quick glance, then nod and hustle up a plain metal staircase, entering a code on a keypad and motioning you to follow them in.

The decor inside the room is even tackier than most of the club; big canary yellow pleather couches and a minibar stocked with the kind of sugary gimmick liqueurs that liquor stores sold at a discount. You give a sultry sway of your hips as you unhurriedly walk over to one of the couches and flop down in it, crossing your legs. The two young thugs look at you nervously yet hungrily. The skinny one with the stupid laugh dares to sit down next to you, but your attention is focused on the one who still has your batons - and probably has the information you want, too.

"So," you say cooly, "I get it, I really do. This was just a small time bar brawl that escalated until it got out of hand. I don't want to have to tell the cops that your friends were responsible for starting this... but you're putting me in a difficult position, not cooperating like this. As a sign of good faith I won't 'put you to bed' as roughly as I did all of your friends down there who are going to be waking up in a hospital. But there's other things I'm interested in... so let's put more on the table."

You slowly crossed and uncrossed your legs, giving them an excellent view of the space between your legs, even through the heavy material of the "semi-bulletproof" bikini bottom you wore. As much as you didn't want to admit it, that ****, messy struggling and wrestling down there got you a little bit excited in ways other than an adrenaline rush... so it was easy to make your tone sultry and inviting, because you partly meant it. "The owner of this place. I'm interested. Judging by how much tough-guys like you seem to enjoy it here, I'm going to guess they have connections with the underworld. I'm not here to take him down - I'm just a heroine getting her start, and I need people who can whisper the juiciest gossip in my ear. "

"But before I can meet him, I need a little information on him. So... you give me a few details, and hand back my gear, of course... and if the cops come up here, I'll tell them that you were both sitting in here, minding your own business like good little boys.. At least, until I walked in and things got sweaty." you gave a little confident laugh, running your hand down your mostly unclothed chest and midsection. You can see both guys' bodies coiling like a spring, fresh perspiration beading on their foreheads as they looked to one another to see if either was going for it.

Of course, with a few quick martial arts moves, you could probably have them in a compromising position of the painful rather than pleasant kind, and interrogate them by **** before taking back your weapons and leaving. But this whole business, going out in costume and fighting in a dive like this, has gotten you really excited... maybe it wouldn't hurt to give them a little show?