Extolling thirty four and a half

Many sing the praises of 69,
but I'd rather extol thirty four and a half.
Oh the joy to lie beneath your wandering tongue
as it seeks out my secret places,
Parting the lips to nibble the nub,
dipping into my urethra, before .... before ...
what I crave and wait for, fingers clutching
the counterpane. You tease and tease
the puckered hole, until delving deep
I scream out over and over again
for thirty four and a half.