Oral sex is definitely a low sex activity according to the experts and sometime termed as "Zero Risk". kissing, french kissing,touching , hand job, nipple sucking, etc are not concern for HIV. What constitute a low risk activity to a high risk activity in a oral sex ? Given the following circumstances which can lead to a little higher risk activity but it will still be a low risk sex activity. But in rare (very rare) circumstances we face such predicament.