If mine is bigger than yours, you have to suck me off. Sooo are

I will suck your cock if you lick my tits. Deal?

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

Suck on mine, and I will suck on yours

If you suck mine, I'll suck yours after that

If you suck mine I'll suck yours