Even if it directly against the character concept you developed for the PC?
Chaste paladin?
Devoted husband and father?
different sexual-orientation?
And it not a character ability -- it's a player/GM ability to say "You couldn't help yourself so you made the first move"?
"The beatuy and charm of the handsome swashbuckler was so overwhelming, you didn't even realize you were talking until you'd already had several drinks together and he was inviting you up to his private room."
--what happened here?
--The game mechanics made you do something against your will: get friendly with the swashbuckler.
--The game mechanics left you room for a choice: go with him or not?
No, you didn't make the first move, the seducer in question worked their charms on you. Maybe they batted an eyelash, flashed a sexy leg or exposed a tanned, muscular chest and shot you a glinting smile from their stubble bordered mouth.
They enticed you to make a move towards them, maybe your first intention wasn't to jump their bones, but once you started talking(and drinking) well...
A chase paladin(male or female) might receive a bonus to ignoring the enticing looks. Saying something in the event is likely to have your DM consider such favorably.
Devoted husband and father? Alone? At the bar? Late at night? Me thinks trouble with the miss'!
Different sexual orientation doesn't belie attraction or come-on attempts. It just makes them easier to rebuke.
I doubt the "skill" says "If you succeed in this charm, the player does whatever you want forever." The use of the skill just needs to be specific, "The beautiful barmaid bats her eyes at you just before she turns away, sauntering down the tables, as though enticing you to follow her." ----Roll contested will.