Cunnilingus
The audio refers to someone giving oral stimulation to a vagina with their tongue.
Small dick gets you pegged
You'll never satisfy me with that tiny little penis of yours... so I'm going to need you to use your mouth...and since you are just SUCH a slut, I'm going to have to fuck that tight little ass of yours with my strap on. You'll be a good boy for me, won't you?