Tell the whole truth

You decide to tell the whole truth. After all, Lily suggested you could do something like this, right?

"I left the butt-plug in, and he noticed," you admit. "He found it while patting me down. He thought it was pretty hot, apparently, that I was wearing it. One thing led to another, and I let him pull the plug out. I even sucked his cock as he jerked me off.

Lily blinks in surprise, clearly stunned by your admission.

"Oh," is all she manages at first, her voice quiet. She steps closer to you, pauses, and then smacks your arm with her hand.

"You should have asked me!" she says, clearly hurt. "I would have said yes, you know," she adds, looking away. From the way she's biting her lip, you suspect she regrets missing out on the sight nearly as much as she's hurt you didn't ask permission.

You bite back a retort that she wasn't around to ask. Really, you know she's right. Instead you take a different approach.

"I'm sorry. I wish you'd been there to ask. Then you could have watched too," you say slowly, gauging her reaction.

Lily turns back to face you.

"Watch you? With another guy?" she asks, and from the far-off look in her eyes, you can tell she's imagining just that. You nod your agreement.

"Mhm. He was hot, you would have liked him. You could have seen him fuck my face, or the way I came all over myself when he jerked me off," you whisper in what you hope is a sensual voice. "You could have touched yourself if you wanted. And I would have watched you watching me, sharing our dirty little secret."

Lily inhales deeply. She's not wearing a bra, and you can see her nipples are stiff beneath her camisole. You decide to push the envelope even farther, and really seal the deal. You lean in close to her and whisper in her ear.

"I let him cum in my mouth. Do you want to taste it?"

Her entire body stiffens, and when you pull back to face her you are rewarded with a stunned expression that is equal parts alarm and arousal. She swallows with a dry mouth, then gives a quick nod, her eyes fixated on your lips.

You lean in again, and this time you kiss her, parting your lips and slipping her your tongue. She moans indecently and loudly enough for anyone close by to hear the moment she tastes the salty and bitter residue of his cum on your tongue. She sucks on your tongue, eager to taste more, and when the taste begins to subside, she slips her own tongue inside your mouth, probing about for more.

When you pull back, she's breathless, trembling, and flush with arousal. You can see the lust in her eyes. Finally, she speaks.

"Fuck, that was hot. Imagining you fucking another guy...yeah, I'd like that. But next time, and there had better be a next time, you will ask first. And I'll watch." she says, emphasizing her words with several jabs to your chest with her index finger.

You smile and nod, giving her a conciliatory hug. All things considered, that's about as good an outcome as you could have hoped for.