Blow jobs feel very nice - especially if the girl puts some effort in and knows what she is doing. Probably don't feel that great if you are circumcised or if you beat your meat with an iron grip. You should go for it dude. I'd be a 30-something virgin if I hadn't started fucking escorts and thank god I did. Had some great times. Have some very fond memories. I see my favourite hooker every few months and she is great.
I have only ever coomed in one girls mouth. There was this escort I used to see when I was working in Nottingham. She was this cute girl next door type - I'd say she was a 6. She was quite posh, went to a private school in the south of England and was studying at uni. I was mega horny the first time I saw her and coomed in her mouth and she sucked hard as I came. It was one of the best things I ever experienced. We had quite a good arrangement - she would do an all nighter with me for £400. Sadly she retired in January 2015 - she moved in with some friends.
As for some users saying you'll get the Herp - I have had blow jobs from more hookers than I can remember. I have been escortceling since 2009. The first girl I saw sucked me raw and only a handful of girls in that time have rubbered me up for that - because there isn't much point with a condom on and I'm fine - never had an outbreak. Never had a coldsore on my mouth either. In the last few years research has come more to the point of view that most of the population carry at least 1 of the herpes viruses somewhere on their body, it's just a minority of unlucky people who get outbreaks of the virus. In most people its dormant or they are asymptomatic carriers.