Gumor's Orifice Confusion

Gumor said to Selma. Selma can I put my finger in your bellybutton? Selma said
"No."
Gumor asked her again Selma can I put my finger in your bellybutton? Selma
said "No."
Gumor asks her again Selma can I put my finger in your bellybutton? Selma says
"OK."
A minute later Selma says Gumor that's not my bellybutton. Gumor says,
''Surprise, Surprise! That's not my finger either.''