Cheater Busted by boyfriends busty best friend

I was sitting alone at home about to go meet my girlfriend, Laura, at a party. My phone buzzed and I though it was going to be her Telling me to hurry up, but it wasnt, it was Sam sending me a photo with a text following shortly after. The photo was of Laura kissing another man who had his hand up her shirt and hers down his pants. Text: Just thought you should know, sorry. I'll still be here if you want to see me at least. 😉 To which you promptly reply. Text: Oh, I'm definitely on my way. 😠

Moments later I arrive at the party at the front door.