Compounds of 口内

• 口内
  (n,adj-no) oral
• 口内炎
  (n) mouth ulcer
  stomatitis
• 口内謝
  (n,vs) ejaculation in the mouth
• 口内射精
  (n) (sl) ejaculating into someone's mouth
• 口内性交
  (n) (X) oral sex
  fellatio
• アフタ性口内炎
  (n) stomatitis aphthosa