Just go with it (Pretend to not know)

[A/N: This chapter has been entirely rewritten to feel more natural]

The idea of my Girlfriend regularly sucking a cock in secret had me feeling strange things, and I can't really fault my mom for not wanting to tell me what is most definitely an embarrassing fact about herself. Ellie had also already agreed earlier when I asked...

I took a deep breath and spoke to my Girlfriend. "If you really want to then go, I'll leave it entirely up to you." I haven't seen how large my mom was so I pushed my Girlfriend further. "Why don't you go give it a try right now, then you can return and tell me if you really want to."

It seemed my extra urging wasn't needed because she leaned into me placing her hand my crotch and the bulge of my dick hard in my pants "I know what you're trying to do, making it seem like this isn't your choice." She leaned in closely so she was whispering in a sensual tone "Just the thought of your Girlfriend and mom having... hot lesbian sex, her lips on your Girlfriend's pussy as I try to hold a conversation with you." Her words and teasing touch had me achingly hard, the words inserting the images into my mind.

She got a grin on her face "I suppose I can at least get you some of this relief first." She crawled under the table before pulling my dick out of my pants she gave it a few strokes before she places it against her own face and with a teasing smile she says. "Just think, after you I'm going to go upstairs and be looking up at your mom in a similar way before I-" She pauses her sentence to run her tongue all over my shaft resting her mouth over the tip. Then continuing her sentence breathing heavily over the tip. "- all over her co- cunt" She was definitely going to say cock before correcting herself, so she knew about it before I did. The thought that my Girlfriend has already been sucking my mom's cock in secret arrived in my mind, and quickly confirmed when she took my dick into her mouth noisily.

It was the same sticky sound of the 'cooking' earlier. I remembered how my mom moved her hips disguising their movements as a way to bounce her breasts at me, that also had me looking away from her letting her thrust harder. That explains how the sound filled the entire kitchen, then remembering that I sat listening to that sound for a while. Unaware that my Girlfriend was taking what was probably an extremely large cock down her throat. I found myself releasing really quickly from the series of tumultuous thoughts running through my head.

Ellie hummed as she gulped my load. Then she pulled away giving me a knowing smile before crawling out from under the table. Then she started to walk to the door "I'll be upstairs with your mom, I'll let you know when I am done."

"I'll be cleaning up the kitchen" I spoke with a heavy breath. I was going to clean it, but I was going to try and sneak a peak at her. I pulled my pants up and silently followed after her after a few seconds.

When I got to the door I noticed it was cracked open again. Looking down there was a sandal that hasn't been noticed that just kept the door from closing fully.

Looking through, my Girlfriend really wasted no time. She was already kneeling in front of mom's open legs, and true to her word she was looking up in a similar way she was with me. Except my mom's cock covered half her face and went up over her head, a full 14 inches long it was incredibly thick. A large drop of what had to be precum landed on top of her head, from the size of her nuts just that one drop was probably more than my actual release. Then she performed the same shaft licking leaning back as she did, the clear thick strand of the precum going from the top of her head to her lips where she licked it off the tip breaking the strand.

My mom didn't wait for her though, when my Girlfriend opened her mouth about to take the cock my mom just pulled her forward forcefully shoving her cock down my Girlfriends throat. With its ridiculous size I thought Ellie would resist and push against her, but it seems she was used to this treatment as she had both hands on the sack each hand caressing a nut. She didn't move her head instead my mom had gripped her head and moved it for her, my mom went at her own pace. Then holding herself deep I could hear from here the sound of her cum filling up my Girlfriends throat. She struggled as she wasn't able to swallow it all, it overflowed around the cock in her mouth, her chin was a mess and large drops fell to the floor.

My mom pulled my Girlfriend's head back after she finished, I heard gasps as she quickly took in air. Then she set about cleaning, the first thing she cleaned was my mom's cock I figured she would then clean her face but I didn't want to get caught watching so I left returning to the kitchen. I just finished cleaning the kitchen when Ellie returned, she jumped me shoving her tongue into my mouth. I knew what I was tasting was my mom's cock and more likely her cum but I couldn't help it I was hard again.

She knew it too as she was rubbing up against it before she turned around her hips swaying more than usual as she walked out the door.