You mention several exposures. You are not at risk from having your anus masturbated by someone else, even if they had some of their own secretions on their fingers. Similarly there is very little risk to you from performing oral sex on a partner of unknown status.
As far as the "blisters" you saw on your penis, herpes is a possibility and you could get HSV from receipt of oral sex from someone. My advice would be for you to see a professional who can take a look and perhaps do a culture if that is warranted.
On the other hand, none of the activities you describe generate any meaningful risk of HIV.
Hope this helps. EWH
You ask the same question repeatedly. I will answer one last time, further repetitive questions will be deleted without comment. No change in my assessment. EWH
sorry I got the blisters before encountering the two guys, but could semen seep through the blisters and cause herpes since you said previously that herpes is a possiblity?
No to both questions. Herpes is not present in saliva. Herpes is spread by direct contact.
The quoted figure for HIV risk, if one has oral sex with an infected partner is less than 1 in 10,000 and, in my estimation that is too high. Some experts state there is no risk at all from oral sex. Neither of us on this site have ever seen or reading the medical literature of a convincing instance in which HIV was passed by oral sex,even if you have blisters or sores. EWH
Thanks for the advice, can you get herpes from saliva? what is the likelyhood of getting hiv through receiving oral sex? if the guy's mouth had semen, could it seep through the blisters or does it have to be bleeding? sorry for being explicit!