Bring up your girlfriend

You take a step forward, already full of thoughts about sucking the fat cock in front of you.

You pause though, as you remark, half to yourself, "I...uh...have a girlfriend."

Your mother's eyes widen in surprise, obviously not expecting that kind of revelation this late into the encounter...she looks a bit put out, but collects herself quickly.

"I see...so you were cheating on her with Fiona earlier?" Her tone has a bit of a reprimand in it. You shake your head defensively, quickly denying it. "N-no, she knew about it, and liked the idea."

Though she has a fairly obvious matter that hasn't been dealt with, your mother seems intrigued by your slip of the tongue, and starts pressing you for details...

By the time she's done questioning you, you feel more exposed than you ever have in your life...recounting how Fiona ended up slipping her presence - and cock - into your relationship with Allison is humiliating, but brings up a lot of arousing memories.

Your mother looks mildly exasperated at Fiona, but - as you are all too aware - her cock doesn't subside in the slightest.

"Well...I can't say I approve of Fiona embarrassing you in front of your girlfriend like that, it seems like it worked out..." She looks thoughtful. "You can't keep Fiona's identity a secret forever though, and it might be better to get everything out in the open sooner than later...from everything you've said, I don't think she'll react poorly."

You swallow, feeling emboldened by your mother's thoughts on Allison matching your own...every time you've revealed something kinky to your girlfriend, she's reacted well. This shouldn't be any different.

Your mother sighs as you think it over. "I suppose I'd be a bad influence if I let you suck my penis right now though. You'll have to wait until at least tomorrow to get permission to fool around from your little girlfriend...while you're at it, at least consider inviting her over for dinner for the...big reveal."

You feel an involuntary pang of disappointment at losing your chance to suck your mother's fat cock, but there's a kind of relief in having everything out in the open with her...revealing everything to Allison as well is tempting.

Feeling horny and dazed, you leave your mother's room shortly after, trying to decide how to handle things tomorrow...