Go down on her

"How about I help you finish," I said with a smile as I dropped to me knees next to her.

"You read my mind," she said. Amy hiked up her night gown to reveal her pussy, then swung one leg over my shoulder and pulled me into her. She tasted slightly different than normal, but pregnancy hormones sometimes did that. "Your brother may have a bigger dick, but your tongue is amazing."

I attacked her clit with my tongue, knowing I needed to finish her quick in case Kate came looking for me. I groped her sex ass as I ate her, causing her to moan softly. I slid one hand around to the front and put two fingers in her pussy.

"Fuck you're good," she moaned. "I'm gonna cum."

As I felt her body tense, I slid my tongue down from her clit and into her pussy. When she began to orgasm, her pussy juices started flowing and I hungrily lapped them up. It wasn't quit a squirt, but it was a wet and sloppy mess, and I ate it all.

When her orgasm subsided, she pulled me to my feet.

"Damn, you're good," she said. "I didn't know you were going to swallow all of your brother's cum while you were down there."

I remembered how she had tasted different.

"That's fucking hot," she said. "We just had a quickie before he left, and he came in me. If I'd known you were going to suck all of my cum out of me, I would have warned you. Didn't seem like you cared though."

Before I could even form a response, she pulled me into a kiss.

After a few minutes she pushed me away.

"Now go upstairs and kiss your wife," she said with a smile as she straightened her gown.