Muffin appears in the following archives:

Feet & Legs - 12, 17, 18, 19 Tickle - 9, 10, 11 Sit Crush - 8, 10, 11, 12 Crush - 9, 10, 11

Pedal Pumping - 9, 12, Giantess - 16 Swallow - 12, 15 Trample & Worship - 9, 10, 12