4 letter (change 1 letter)

[Cazz]

Burn

 

[Plane_Jane]

Ruin

 

[Alex1960]

Rune

 

[Stiffernow]

Runt

 

[Plane_Jane]

Nuts

 

[Alex1960]

Stub

 

[Plane_Jane]

Butt

 

[Alex1960]

Bust

 

[Plane_Jane]

Stud

 

[Alex1960]

Spud

 

[Plane_Jane]

Pods

 

[Alex1960]

Dips

 

[Plane_Jane]

Pins

 

[Alex1960]

Puns

 

[Plane_Jane]

Nuns

 

[johnnyb73]

Buns

 

[Alex1960]

Bust

 

[johnnyb73]

Bust

As long as perfect as yours

 

[Plane_Jane]

Stun

 

[Alex1960]

Buns