Too delicious to resist.

Zero Five felt Sam's cock relax inside her mouth, showing that it was done firing the last shot of his second load. She slowly pulled back making sure her lips cling tightly to the shaft, cleaning every drop of the cloudy white liquid while ejecting the exhausted rod.

A few licks here and there finished the job, and when she saw that the member returned to its normal, deflated state, a small smile formed on her face. Her oral service was enough to satisfy the Doctor's hunger, even if temporarily. 

As his Personal Valkyrie she knew how much it usually takes to lower his spear. Seeing that only two rounds did the job, the Valkyrie couldn't help feeling prideful of her achievement.

"Doctor." She took her eyes off the inactive tool and gazed up at her beloved. "I hope that helped you relieve some stress."