4 letter (change 1 letter)

[Walks]

How did it got from cusp to peni? Isn't this change 1 letter?

Snip

 

[Babe]

Dips

 

[Cazz]

Lips

 

[Snoopy05]

Laps

 

[Walks]

Slam

 

[Snoopy05]

Slim

 

[Walks]

Lime

 

[Nibbles]

Live

 

[Snoopy05]

Lice

 

[Nibbles]

Lick

 

[Babe]

Dick

 

[Nibbles]

Dock

 

[Babe]

Duck

 

[Snoopy05]

Fuck

 

[Walks]

Muck

 

[Snoopy05]

Musk

 

[Babe]

Rusk

 

[Nibbles]

Suck

 

[Walks]

Cusp

 

[Babe]

Puss