Alpha's Pregnant Omega

After living in hellish prison for 16 years, you're finally rescued. But what do you do when you soon realise that there is now a thread, a connection to the warden you've escaped from?

BLURB:
He could clearly see the way the water droplets ran down her back. The brown curls, almost black due to being wet, stuck to it, gave such an alluring contrast to her skin that seemed to glow in the moonlight. She turned, causing her ample breasts to come into view. A single droplet hung precariously from a pebbled nipple. Was his eyesight always this sharp? It appeared like a pearl, begging to be licked away. He groaned as he could almost taste the cool freshness on his tongue before it was replaced with the heat of her flushed skin.
Unzipping his jeans caused his member to spring forth, drenched in the constant precum that flowed. Just the thought of sucking on her breast made him groan in frustrated desperation. He buried his face between the fleshly orbs. Biting and licking, he was pleased to see his marks on her skin. A fierce desire to possess came over him, and even his wolf growled at the feeling.
How is it that she smells even better than the soap she just used? Other Omegas used the same kind, yet their smell would cause his stomach to feel upset.
Inhaling again, he pinned her against a tree. The same tree he was hiding behind before. Lifting her, he devoured her lips while wrapping her long legs around his waist. Slightly bending his knees, he entered her in one deep thrust. She was hot and tight. So tight that if it wasn't for her juices, he wouldn't be able to move.
Gripping himself tighter, his imagination became wild. Just thinking about her breathy moans or her screams of pleasure caused a shudder to pass through him as he came in his hand.