Three word game ...

[KEEF]

cyclist Big Bertha

 

[172traindriver]

with massive thighs

 

[classic33]

and even bigger

 

[172traindriver]

well shaved calves

 

[classic33]

she'd rustled from

 

[172traindriver]

down Happy Valley

 

[classic33]

near Slack Bottom

 

[172traindriver]

of the hill

 

[classic33]

where everything hung

 

[Maverick Goose]

long and hard

 

[classic33]

when the wind

 

[172traindriver]

made it flap

 

[KEEF]

against Bertha's sprocket

 

[172traindriver]

not engaging smoothly

 

[classic33]

everytime she went