Just my 2 cent. There are so many different things that turn girls on and no two girls are the same. We both decided that what turned us on the most was watching men sucking off men. Swallowing quickly and drinking a little juice after seems to work great most of the time. My wife, kim had a breast enlargement a couple of years ago.
Watch this: blow job tutorial video
Use lube, but condoms eventually get dry which might hurt her. L really like the story and wish l was the one doing the sucking.