In an unexpected way.

Jake had worked hard to finish that pile of work as soon as possible, and the picture had hit him very brutally as he sat into the bus. He spent the next thirty minutes alternating between texts, failed calls and that picture. Every time he went back to it, he felt weird. Angry, obviously. Shattered at the betrayal of trust. Aroused by his magnificent girlfriend, yet horrified at her situation. And, slowly creeping thought the denial, excited by the cum all over her face, the moist lips of her snatch he'd planned on eating later on, the way her cunt stood wide open.

He knew it never looks that way after they fucked. The man who'd been in his bed must be a true stallion, a real bull. He blushed, making sure nobody could peek at his screen. He was getting an erection. In the bus. Seriously, man. Get a grip.

Well, he wasn't too surprised. Jenny was gorgeous, way out of his league. If she decided to dump him after this, he'd know she would be right about it. Did she ever cum with him, or did she fake it, anyway? She mostly proffered to suck him off, or caress his belly as he masturbated and played with her breasts. He loved to eat her out and play with her button, but penetration always felt a bit lacking. Obviously, it wasn't just an empty feeling.