Sakura was a very well behaved kunoichi on the the Lady Hokage's apprentice, she had an example to hold up and therefore tended to be very good about following all the rules and laws applied to her. It was a rare thing for her to end up indulging in any sort of alcohol due to her age, and thus…few people ever learned that she was a particularly aggressive drunk.
She didn't tend to be violent, of course, she wasn't so irresponsible with her strength and skill: allowing herself to wildly flail about and attack people with her skill would result in maiming or death, especially around civilians. Aggression of the sexual sort, however, was a completely different matter. Especially to those she was already attracted to.
Which, really, was a long-winded explanation she didn't bother to offer even a short version of before she shoved her frustrating teammate up against the wall and delivered a biting, forceful kiss.
He deserved it, making her use up her first kiss like this instead of something memorable and potentially magical.
That was how she felt about it, anyway.