Three word game ...

[Fnaar]

like false steps

 

[Astrodamus]

becoming a slide

 

[Ming the Merciless]

Into smutty innuendo

 

[classic33]

and never ending

 

[Ming the Merciless]

erections popping up

 

[mistyoptic]

resulting in dampness

 

[guitarpete247]

Of the moss

 

[mistyoptic]

causing slippery moistness

 

[classic33]

to flow into

 

[Paulus]

the warm socks

 

[classic33]

being worn on

 

[Paulus]

the family dog

 

[classic33]

, while in the

 

[Ming the Merciless]

big family sauna

 

[classic33]

to avoid scratching