Hi mate,
If I were you I'd look on the Adultwork site and pick an independent escort near you who has got some good feedback both there and on this site. If you are worried, choose one that doesn't offer bareback sex, and someone over 25 that also speaks English. That way you can communicate better and she will be more likely to provide what you want. Don't go too overboard on your first punt, and probably just book 1/2 or 1 hour.
Good luck and have fun.