Sarah was sleeping in her bedroom. Tom quietly crept into the room and looked at her body. She was wearing a nightgown but it still couldn't hide her beauty. Her lips were luscious and her body was so sexy and slim. The breasts of hers were huge, probably exceeding D-cup. He then opened the lid and allowed the symbiote to crawl all over her. The symbiote ripped away her nightgown and covered her whole. Sarah woke up and wanted to scream but the symbiote covered her mouth, so only muffled moans could be heard. She wanted to struggle, but soon she gave into the pleasure as the symbiote entered her body, and she orgasmed, cumming green liquid everywhere.
Sarah: Oh yes! Ah! Ah! Give me more. I grant you... my body! Ah!
She moaned in pleasure as the symbiote covered her wholly, and transformed her fingers and toes into claws. As she opened her mouth while screaming, the symbiote took the chance and crawled into her mouth and throat, making her teeth sharper. It then crawled up her head, creating teardrop-shaped eyes and turning her short brown hair into writhing tentacles.
She then stood up.
Sarah: Real thanks for this, Tom.
Tom: No thanks.
Sarah: The symbiote said it needed some sex to make me fully bonded with it. Would you help me out?
Tom blushed and his dick was erecting. Sarah retracted the mask and looked at him pleadingly.
Sarah: Come on! Don't be shy.