"Is your ass broken?"

Amy grinned and turned away from me, leaning over the railing. Her gown drifted up, showing off her ass.

"Why dont you come find out, big boy?" she asked.

I crossed the porch, coming up behind her. I wrapped my arms around her midsection and she turned her mouth back over her shoulder to meet my lips. My hard cock pressed against her bare ass.

"You might want to hurry," she said. "Would hate for Kate to come looking for you."

"She is out," I say as i pull her gown up the rest of the way and then drop to my knees behind her.

I lean my face into my sister-in-law's ass. The scent of some floral body wash and pussy fill my nose. My tongue slides out and runs up her crack.

"Good boy," she says softly as I eat her asshole. "But hurry up, i need a dick inside me now."

Not wanting to make her wait any longer, i stood and pressed the head of my cock to her asshole. I gently pressed against her and she opened for me.

"Fuck yes," she moaned softly.

I pounded in and out of her tight asshole. She moaned her approval every couple of thrusts. I still had my arms wrapped around her, but slid my hand down slowly to her pussy. She might not be able to have sex, but she might still be able to get off.

"Harder," she moaned, and I did as she asked, pounding into her ass harder and rubbing her clit faster.

I could feel her body tense as she started to orgasm, and a moment later i happily filled her ass with a big load of cum.

We seperated our bodies and she turned to kiss me.

"You are the world's best brother-in-law," she said with a smile.