Up until recently, I was a notorious nail biter. But, since I'm standing up in a friend's wedding next month and want pretty nails, I have been very good with not biting lately.
im a dude, i dont like teeth mixed with sexual body parts dont matter how gentle you are it hurts. i had a gf that likes being oral, wasnt that good used her teeth alot. notice i said had a gf that... but i know that having my nipple payed some attention to is quite nice.