Three word game ...

[172traindriver]

until this moment

 

[welsh dragon]

When suddenly it

 

[172traindriver]

just popped out

 

[welsh dragon]

Very unexpectedly and

 

[172traindriver]

exposed itself fully

 

[welsh dragon]

To prying eyes

 

[PeteXXX]

for a moment

 

[172traindriver]

allowing a decision

 

[welsh dragon]

That was needed

 

[172traindriver]

on the replacement

 

[classic33]

run over by

 

[PeteXXX]

two girls on

 

[classic33]

A tandem stolen

 

[welsh dragon]

From your shed

 

[Blue]

where spiders live