"The horses in the race" joke

The horses in the race are:
1. Passionate Lady
2. Clean Sheets
3. Bare Belly
4. Thighs
5. Silk Panties
6. Big Johnson
7. Conscience
8. Heavy Bosom
9. Jockey Shorts
10. Merry Cherry
At the post: Aaaaaand they're off !!! Conscience is left behind at
the post. Jockey Shorts and Panties are off in a hurry. Heavy Bosom is
being pressured. Passionate Lady is caught between Thighs and Big
Johnson in a very tight spot.
At the halfway mark: It's Bare Belly on top. Thighs opens up and
Big Johnson is pressed in. Heavy Bosom is being pushed hard against
Clean Sheets. Passionate Lady and Thighs are working hard on Bare Belly.
Bare Belly is under terrific pressure from Big Johnson.
At the stretch: Merry Cherry cracks under the strain. Big Johnson is
making the final drive. Passionate Lady is coming.
At the finish: It's Big Johnson giving everything he's got !!!...and
Passionate Lady takes everything Big Johnson has to offer !!! It
looks like a dead heat but BIG JOHNSON squirts through and wins by a
head!!!
WHOHHH! Heavy Bosom weakens, and Thighs pull up. Clean Sheets never had
a chance...