This question is a bit tricky! It depends on what you mean by "OK." Here's a breakdown:
Is it OK to kiss someone who is Catholic?
Yes, it's perfectly fine to kiss someone who is Catholic. Catholicism doesn't have any rules against kissing, and it's a common way for people to express affection.
Is it OK to kiss someone who is Catholic if you are not?
Again, there are no rules against this. Catholicism focuses on personal beliefs and practices, not on dictating who you can or cannot kiss.
Is it OK to kiss someone who is Catholic if they are in a relationship with someone else?
This is where it gets more complicated. If someone is in a committed relationship, it's generally considered disrespectful to kiss them without their partner's consent. This applies to Catholics and non-Catholics alike.
Is it OK to kiss someone who is Catholic if they are taking a vow of celibacy?
This depends on the specifics of the vow. Some Catholics may take vows of celibacy for religious reasons, and in those cases, kissing would likely be inappropriate. However, if the vow is for personal reasons, the individual would need to be consulted.
Ultimately, the "OK" of kissing someone depends on the individual situation, their relationship with you, and their personal boundaries. Respecting those boundaries is always essential.