The chat window flickers with their explicit messages, each one more lewd than the last. 'I want your big dick in my ass,' one types, his voice gruff as he speaks the words aloud. 'I want to feel you stretch me open, fuck me raw.' The other man grunts, his hand moving faster on his cock as he imagines the scene, the tight heat of his partner's ass around his cock, the sound of their bodies coming together again and again.