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Hand job is the safest type of sexual activity among all types of sexual encounters. HIV
Transmission through Hand job is negligible.
Human saliva doesn't contain infectious dose of virus. So it is not at all a common route of HIV transmission. HIV transmission through kissing over external lip even in the presence of a cut is a very very remote possibility.
So you need not worry about HIV. Forget about the past, relax and concentrate on your day today activity.