Make Anna wait

"Erica, could you come over here for a second?" Looking up, she readily hops over to you. "Suck my dick, will you?"

Erica giggles, glancing at Anna before sliding off the bed and going down on you, her lips sliding over your shaft as she kneels between your legs.

Anna sighs, then puts on a mock pout. "I hate you guys," she says in a friendly tone, then moans as you slip your finger deeper into her anus. While Erica sucks you off enthusiastically, she occasionally moves her right hand over to Anna's ass to grope and slap at it. She's loving the attention, her groans and heavy breathing growing louder by the second. Eventually she puts her hand to her crotch, beginning to rub herself.

After a minute or two, you lean over to whisper in her ear. "Do you want to cum?"

"You knoow..ah..th-that I neeeed a dick in my...my ass to cummm," she moans weakly.