He suffers a little longer.

Evelyn smirks and says "Oh wait I forget something didn't I. We have one last observation to make. Big boy, dear, could you pull out of Mama's pussy? You did a very good job and I'll clean you up in just a second I promise."

Big boy slides out of her with a grunt. When he does it's like popping the champagne cork. Cum and pussy juice floods out of here and ruins the sheets on the bed forever.

"Now then, do I look dilated?" Evelyn asks the intern as her hole gapes wide enough to fit a 2 liter of NukaCola. The intern's face somehow turns paler. "I asked you a question boy? Do I look dilated yes or no?"

"Yes" he answers meekly.

"Oh I don't know..." she says in a mockingly ponderous voice, "I certainly feel stretched out by why don't we measure it. Come here and stick it in. Let's find out. I can see that our observation session made you hard. Why don't you come and let your boss relieve you".

The intern, dejected, takes his cock out and walks towards Big boy and Evelyn on the bed. Evelyn doesn't move so in order to get in her pussy the intern has to kneel in the giant puddle of filth. He pushes in and Evelyn's cunt offers no resistance. He looks at her face but she keeps the same blissfully content look the whole time. She doesn't seem to register he has entered her at all. When she feels his hips buck against her she raises her eye brows and giggles. "Oh so I'm definitely dilated huh? Well you can keep going if you want, I don't care. Big boy's still hard and Mama has to reward her good boy for doing such a great job.! Here, come straddle mommy's chest big boy. You can wipe all that nasty slime off between my tits as I clean your head."

The intern continues to pump as the once beautiful view of Evelyn's soft pillowy DDs and cute button nose are replaced by Big boys broad green backside. He glides in and out of Evelyn's well worn hole as he listen to the wet schlik of tit fucking and Evelyn comments on how good Big boy's cock tastes covered in their cum. Eventually the intern feels himself twitch inside Evelyn's cavern and he spurts his goo, not that anyone will notice. He sits back completely covered in shame and waits for the other two to be done. Somehow Big boy drops another load right down Evelyn's throat and she deems him clean enough. She wipes down her crotch and ass with the interns shirt and tells him to clean the room. She and Big boy leave to check on biter.