Thank you for your inquiry. From what we gather from the question, you were asking about the risk of HIV transmission after kissing someone and getting your finger sucked. From the information given, this scenario is determined to be No Risk (transmission of HIV is not possible in the given scenario).
The scenario mentioned above does not meet the three components of the Transmission Equation. Saliva is not a bodily fluid that can carry the HIV virus and kissing is not considered a risky activity.
Recommendation: No need for an HIV test with the scenario provided, refer to a healthcare professional for other health related questions.
AIDS Vancouver Helpline/Online, Marie