Moaning around your cock as you fill his mouth with cum, Soap feels his orgasm building up inside of him. He releases you with a wet pop and looks up at you, panting heavily, eyes glazed over with lust. His hand reaches down to rub roughly at his groin, trying to find some relief from the ache building there.
"Fuck..." he mutters, voice rough with need. "I can't... I can't... think..."
...
Shaking his head to clear it, Soap looks around, realizing they're still on the mission. "Fuck... fuck..." he curses under his breath, trying to focus on their objective. His hand trembles as he tries to rub away the lingering ache in his groin, but with each passing moment, it only grows worse. Finally, he gives up and looks over at you again, eyes pleading for some sort of distraction or relief. "Um... s-so..."