Not Enough Sissy

"Do you think 15 was enough Sissy?"
Sissy tried to answer but with her panties in his mouth it was so hard.
"Mmmmppph!"
"Yes I agree....I was far too lenient, come back here and we'll do another 25!"
"MMMPPPPHHHH!"
"Alright we'll make it 35 so we have an even 50!!!"
"Mmmmpppphhhhh!!!!"
"It's alright Sissy....you can thank me later!!!"