the answer to the "is there a right and wrong way to give oral sex" will vary from person to person. you will have to ask for exactly what they like and what they dont. like with me, do not tickle me with your tongue downt here, but a few guys have done that to me without me saying anything, so obviously there had to be another girl that liked it. you just gotta ask.
i find it interesting that you dont like teeth on your penis, my man LOVES IT, it doesnt hurt him at all. so you see already, it does vary.