Grit her teeth and watch

Alice hated to do it, but she knew that she could nail one of them, and then she could only pray that the other two ran. She wasn't the religious type. The only other one she had encountered didn't even run when it was shot through the arm by a 4000 degree laser pulse. Alice gritted her teeth and prepared to see the worst. The savagely strong limbs of the Primate Mantis, combining the exoskeleton of an insect with the brutish bulk of a Gorilla, was demonstrated as it moved it 500 kilo+ bulk effortlessly from limb to limb in the trees. An unarmed human stood next to no chance against that.

Cassandra stood up, looking frantically from side to side for her rifle. She saw it behind one of them advancing on her. Her eyes lit up. Alice could see them. Brilliant blue eyes. She unclasped her combat helmet and let her short, straight red hair fall down. She held the helmet like a weapon in one hand. It was no use.

The first one leaped from side to side. Alice watched as the one behind crept up, and deftly plucked the helmet from her hand with one swift movement. She turned and was grabbed by the short, vestigal legs of the one in front of her. Cassandra's legs scissored beneath her. It was no use.

They pounced. In a matter of seconds, her armor was torn from her, along with her uniform. Cassandra's bare breasts glistened in the rising light of the moon, pale against the dark jungle canopy. Alice looked on, and hated to think of it this way, but if they only wanted her sex...

Her suspicions were confirmed a mere seconds later. She could literally hear its chitonous plates slide open before she saw its thick, oozing member slide out. She shuttered, as she was sure a similar fate might have awaited her. Her requiem was short lived, as she saw Cassandra suspended in mid-air by her arms, her legs pried apart, and the Primate Mantis slide its ooze up and down her sex.

She gritted her teeth and turned away as she heard its thick, gray-brown cock slide into the woman and her cries. Over and over the liquid slap of her violation echoed in the glade. The horrendous "OO-OO-TSSSSSSK" of the Primate Mantis as it pounded over and over into her, the dripping ooze from between her legs, the fading roar of the thrusters overhead, all played in Alice's mind.

"Three shots..." she thought, as she heard it pick up the pace. Cassandra bellowed in agony and excstacy. For what seemed like an eternity, Alice listened to it. Suddenly, the sounds changed. The quickened slaps and the final HOO HOO HOOOOTSSSKK-ICK-ICK-HOOO!" caused her to look back. Thick ropes of cum dripped from Cassandra. She didn't fight anymore. She only hung by its vestigal legs, impaled on its cock.

It stumbled, and she fell. No sooner than she had gotten to her hands and knees than the next one picked her up. She didn't make a sound as its cock slid into her. Alice saw her face. Expressionless. The thrusting began.

Alice looked at the one that just came. It lay on the ground, writhing in pleasure. A wicked grin split her face. "Do all the male creatures on this planet have to be so typical?" She had a plan.