"Daddy..."
Aqua whispers, nuzzling against him. Her voice is filled with love and pride. She wraps her tail around all three of them, binding them together as they lie there, exhausted but content.
Marina looks up at him with adoration in her eyes. "I love you, Daddy," she breathes, before nestling herself closer against his side. Her hips still move slowly against Aqua's leg, relishing the last lingering sensations of being taken so thoroughly.
He lays there, using his forelimbs to cuddle his Vaporeon closer together. "i love you both too, my darlings." He kisses them on their foreheads in turn and sighs contentedly. This was the life. And he couldn't wait to see the new lives their lovemaking would eventually yield.
They snuggle closer together, still joined by Xavier's tail, and drift off to sleep, dreaming of the futures they know will be bright and full of love.