With his breath hot and heavy against her back and with his muscles strained to their limits, Mia began pumping her pussy back onto Billy's prick. She thrust her pussy back again and again, meeting his every thrust. Pussy walls and cockhead collided wetly and hotly. Pussylips and hairy balls slapped together loudly and lewdly. Both Mia and Billy whimpered and groaned and gasped aloud as they nailed each other repeatedly. Then, trembling violently, they both came.

Mia, overcome by orgasmic spasms, sprayed the kid's prick with her steaming fuck juices. She soaked his spurting prick thoroughly, as well as her own inner thighs. And as she came, she rolled her eyes wildly and babbled like a child.

Billy painted the inside of her pussy with his creamy-white jizz. He shot his load into her and filled her fuck-hole until it overflowed. He burned her tender fuck-meat so much that she screamed loudly and began pumping her sopping pussy in an effort to ease the burning sensation.

"Mmmmm!" she moaned, licking her lips happily. "Oh, Billy, you son-of-a-bitch! You made me come, you little bastard! I never dreamed it would be this good! Oh, shit!"

"Me neither," said Billy, still holding on to her swollen tits. "Fucking you is so much better than fucking the young girls in my school. Your pussy is much hatter and much nicer."

Mia only smiled she continued to pump her cunt around the boy's wet, shrinking prick, milking the hot fucker thoroughly. Hot shivers repeatedly raced up her spine, while creamy cum oozed down the backs of her thighs. She felt very naughty, but completely satisfied. Hell, she never felt better.

She had already decided that she wasn't going to tell Bob that she knew about him and Sally. She wasn't going to say anything about it. But she wasn't going to go on as before, either. She was going to have some fun herself from here on.