Hi, what your describing would be zero risk to contract any std. Oral sex can pass things like syphilis and herpes but a they need to be massaged into the skin to be contracted. A simple quick kiss would not be something to be concerned about.
Totally agree - there's no risk here.
When we talk about oral sex, we are talking about the penis being in someone's mouth, or putting someone's mouth on a vagina, for a period of time long enough to transfer any germs.
A quick kiss to the genitals, either a penis or vagina, isn't going to do that.
Hand jobs never transmit STDs.