text: Yo, let me break it down, listen up real quick,
  We talkin' 'bout 5-HT, serotonin that's slick,
  It's all 'bout the activation of them receptors,
  When it comes to SSRIs, they mess with the specters.
  
  They studied the sexual side-effects, no joke,
  Delayed ejaculation, man, that ain't no poke,
  Wistar rats were treated, for 15 days straight,
  With citalopram, the SSRI, at a certain rate.
  
  They added Way 100635, the antagonist in the mix,
  To see how it affects the sexual tricks,
  Sexual behavior was assessed, week after week,
  After the last test, they checked the rat brains unique.
  
  Fos-immunohistochemistry, the process they used,
  To see what was happenin', not to be confused,
  Citalopram inhibited ejaculation with a mild touch,
  But when combined with Way 100635, it was too much.
  
  Way 100635 by itself, didn't change a thing,
  But when teamed up with citalopram, it made the bells ring,
  The brain sites associated with ejaculation,
  Showed reduced Fos-immunoreactivity, a clear indication.
  
  Citalopram reduced Fos-immunoreactivity as well,
  In the arcuate hypothalamic nucleus, where stories dwell,
  This area might be the link, the connection,
  Between serotonin and ejaculation, that's the suggestion.