If Flaunt succeeds in getting them Horny, they will start doing whatever actions their enemy type is more likely to use to get pleasure fastest.
If your Karryn's charm is high enough, that will result in them masturbating and talking at her asap. Possibly even if it isn't. In general, Flaunt is the skill you want to use if you want to get to the smexy times faster, because it raises enemy desire like nothing else does. Combined with the Raise Desire edicts, it helps with the fuck-strategy attempt.
All in all, if you want to make use of the Confident buff, you're better off using Taunt for the combat approach. It's only really dangerous with Nerds, who can instantly knock down Karryn on the next turn, though not even then if you have a very high Agi build and run laps and dodges around them.