tell her you liked what you saw and want to either join or watch in person...if your really kinky, tell her you will service him as well
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He's really huge, never been into guys but the sight of his hard veiny cock did get me turned on. If he'd let me I'd certainly stroke him until he was hard just so I knew what it felt like to have a cock that large in my hand. I'm sure shed take over then but the thought of holding his balls and caressing them as she sucked him is a pretty big turn on. Like I said not into guys but as he seems to turn her on it would be a turn on to play with his large cock too.