Four'th

Once - they say it's enough
But twice is like "What’s going on?"
Third time is charm
But mesmerized and lost

I'd like to say that once a day will do it
When others pay tribute only once a week
The rest respond with "Perverts!"
I may indulge for a second trip

For the fourth you have to be ready
A sentence in an hour done
Your tongue in cheek and mine
Four times in one

My kingdom for a breath
Your breast for a breath
Your stockings for water
And my sweat for anything

Sure is sweet to tremble
And sour to do it alone
Making the one trip is dangerous
Deadly is the round-back one