CQC

It was just another day at Mother Base when Alligator received a message that he was to report directly to Big Boss. As he stepped into the office he could see only Snake's arms, the legendary soldier sitting in his swivel chair facing the other way.
"You wanted to see me, Boss?" Alligator nervously forced out.
"I told you," the other man replied in a low voice before spinning around in his chair "Call me Naked Snake." And naked he was, or at least save for the bandanna, his fully erect cock now visible to the recruit.
Alligator was taken aback, but before he could even say anything Snake jumped over the desk and used CQC to close the door.
"I think you could use a special training session" Snake growled while gazing sensually at the soldier with his functioning eye, tackled him to the floor, and began to undress him.
"Bo- I mean S-Snake-senpai!" Alligator choked out nervously, not noticing his own erection forming under his uniform. "What if someone sees?"
"Oh, don't worry about that," Snake replied, "They already are." and motioned over to the corner of the room where the MSF drill instructor had been standing the entire time.
"ALRIGHT MEN," he shouted, "TODAY WE'LL BE GOING OVER THE BASICS OF SEXUAL CQC."

By this time Alligator was as nude as his commanding officer and trapped in a CQC hold.
"IF YOU PRESS AND HOLD THE RIGHT TRIGGER BUTTON, YOU CAN PERFORM SEXUAL INTERCOURSE WITH THE ENEMY. MAKE SURE TO KEEP THE RIGHT TRIGGER HELD DOWN. NOW, TAP THE X BUTTON TO FONDLE THE ENEMY'S GENITALS. GO!"
Snake looked at Alligator expectantly, to which the recruit replied "R-ready Boss!" Snake then began to stroke Alligator's hard-on with a free hand, eliciting deep moans from the other man. Just as Snake began to move to playing with Alligator's balls, the drill instructor chimed back in.
"GOOD. NOW, THE ENEMY SHOULD BE COMPLETELY ERECT AND STILL HELPLESS TO RESIST. IF YOU PRESS AND HOLD THE CIRCLE BUTTON, YOU CAN PERFORM ORAL SEX ON THE ENEMY. HOLD IT DOWN GENTLY TO LICK, OR FIRMLY TO SUCK. WHILE LICKING, MOVE THE LEFT ANALOG STICK UP AND DOWN TO MOVE BETWEEN THE ENEMY'S SHAFT AND HEAD. GO!"
And sure enough, Snake bent over - still maintaining the hold - and closed his mouth around Alligator's cock. He began to lick up and down his length teasingly, which did not bode well for the whimpering soldier's composure.

"GOOD. WHEN YOU WANT TO MOVE ON TO ANAL SEX, PRESS AND HOLD THE TRIANGLE BUTTON. IF YOU HOLD THE LEFT ANALOG STICK IN ANY DIRECTION, YOU CAN CHANGE THE POSITION IN WHICH YOU FUCK THE ENEMY. HOLDING DOWN THE TRIANGLE BUTTON GENTLY OR FIRMLY WILL ALLOW YOU TO FUCK THE ENEMY SLOWLY OR WITH INCREASING INTENSITY. WHEN YOU'RE READY TO CUM, RELEASE THE TRIANGLE BUTTON. I REPEAT, ONLY RELEASE THE TRIANGLE BUTTON WHEN YOU ARE READY TO CUM. GO!"
Snake proceeded to CQC flip Alligator into the doggystyle position and pin him down. The soldier resisted somewhat, but both men knew he wanted it just as badly as his commanding officer. As Snake prepared to thrust his manhood into Alligator, he heard the door open behind them.
"Hey Boss, Cecile got into- HOLY HELL!" Kaz exclaimed when he saw the two naked men on the floor. "Boss, don't tell me this is your idea of building trust with your men?"
"It's nothing unnatural!" Snake retorted, still on top of the other man. "It's totally fine!"
Before Miller could say anything, however, Cecile kicked the fucking door in holding a bottle of wine and screaming "MONSIEUUUUUR MILLEEEEEEEEER!" It reminded Snake of The Boss and he got depressed and went to bed and Huey finished developing the support strike marker gun.