It's locked!

You make it into the basement, and see the door already locked.

"Phew". You sigh with relief, putting a few heavier cases and trunks in front of the door to barricade it even more with the deadlock.

You walk slowly and quietly up the stairs, stopping to grab a water bottle from the pantry on the way up.

"You ready for me baby?" you say as you reach the top of the stairs. As you get closer to the bedroom you hearing panting.

"Babe?" you open the door as a burst of cool air rushes against you. The room is dimly lit and you see a dark figure behind Zoe's body which is laying almost facedown against the edge of the bed, and white goo dripping out from the corner of her mouth.

You see her biting her lip and moaning as you freeze in fear seeing the looming figure behind her... its a futa...

Standing almost 6 feet tall, the first thing you notice are the futa's breasts. Enormous, G cup breasts at least, with hard dark nipples the size of your cockhead dripping what you can only assume to be milk down her chest. Her broad shoulders and wide hips expose a softness to her body with huge wobbling tits and round hips and ass.

"mghmmmmm" Zoe moans and pants as her eyes stare out in an almost trance like gaze around the bed. You stare frozen in silence and horror at the corner of doorway, with neither of them noticing your abrupt entrance to the room.

You watch as the futa holds Zoe's hips tightly against the bed, spreading your girlfriends legs and ass. You see it slowly shoves its massive futa organ deeper into her tight ass with heavy balls the size of grapefruits sliding against the wet folds of Zoe's now dripping cunt.

Disgusted, you watch you hypnotized love pushing back against the large futa cock starting moan louder and louder as the tall futa holds her shoulders and shoves her chest against the bed.

It was at that moment you saw Zoe begin to transform.