交互手淫

jiāohùshǒuyín

mutual masturbation

Wiktionary

Entry Composition

1 交互 jiāohù
  1. mutual
  2. interactive
  3. each other
  4. alternately
  5. in turn
  6. interaction
2 手淫 shǒuyín
  1. to masturbate
  2. masturbation