Weddings turn my GF into a slut

My girlfriend (let's call her "K") is usually pretty reserved. We have a great sex life, don't get me wrong, but she's typically a bit shy and submissive. That all changes the second we step foot into a wedding reception.

It's like a switch flips in her brain. As soon as the champagne starts flowing and she hears the first slow song, she gets this look in her eye. It's primal. She'll grab my hand and drag me onto the dance floor, pressing her body against mine so hard I can feel her heart racing. She grinds on me to the point where I have to strategically hold my suit jacket in front of my crotch to hide my boner.

By the time dinner is over, she's a mess. She'll whisper in my ear, "I need you so bad, I'm soaking through my panties." She gets bold, running her hand up my thigh under the table. It's torture having to sit through the speeches and the cake cutting. She'll look at me and just mouth the words, "I want your cum."

We made it to the hotel room this weekend, and she didn't even let me get my tie off. She slammed the door, pushed me against it, and dropped to her knees. She was so aggressive, unzipping my pants and taking me into her mouth before I could even get my shoes off. She was looking up at me with mascara running down her face, gagging on my dick and moaning like she was starving for it. She's usually so gentle and slow, but at a wedding, she's a full-on, dirty-talking pornstar. She actually said, "I want to taste my pussy on your cock later."

I couldn't take it. I pulled her up and tossed her on the bed. I ripped her panties off and they were absolutely drenched. I didn't even need lube, I just slid right in. She was so fucking wet and tight.

And then came the begging. It's the same every time. She wrapped her legs around my waist, locking her ankles together so I couldn't move.

"Please, baby," she moaned, digging her nails into my back. "Don't pull out. I need you to breed me. I want to feel you fill me up. Make me a mommy.

Please, cum in my pussy. I don't care about the consequences, just need it."

She was screaming it. She was looking me straight in the eyes, biting her lip, with her legs locked around me like a vice. She knew exactly what she was doing. She squeezed her pussy around me as I was getting close, and I couldn't hold back. She was screaming it. She was looking me straight in the eyes, biting her lip, with her legs locked around me like a vice. She knew exactly what she was doing. She squeezed her pussy around me as I was getting close, and I couldn't hold back. I unloaded deep inside her, and she just held me there, pulling me closer, making sure every last drop was in her. She kept whispering in my ear, "Thank you, thank you, good boy."

Then she just looked up, smiled, and said, "We are so going to get pregnant at this rate, and I don't even care."

We're at another wedding next month. I'm both terrified and already getting hard just thinking about it. What do I do with this woman? She's going to be the death of me.

Anyone else's GF turn into a complete animal at formal events?