With its proboscis.

Constance’s eyes went wide, in a mixture of shock and terror. Every sense in her mind felt like it was heightening, and she was screaming internally, yet felt like she didn’t even have the energy to vocalise the amount of fear that flowed through her veins. She wanted to thrash and flail around, strike it, hit back, anything! Yet she could not summon the strength, her energy having been sapped by the slug. Even if she did have it back, it would amount to little as she was stuck within the slime that effectively restrained her.

She felt the slug attach itself to her crotch and she gasped and moaned involuntarily. “...Wha?” she moaned, and looked down, hyperventilating as her worse fears were being met. She renewed her futile struggles and made zero progress. She could see the proboscis emerge from the slug and begin to travel down to her exposed virgin never regions and begin to explore. “Oh no no no no... Not there... Not like this... Please no...” she began to moan as she felt herself involuntarily moistening and becoming aroused by her captivity and molestation.

“Please. No. No no no... I’m a virgin...” she moaned. Of course, the slug didn’t care and had different plans in mind. Lining up upon her slit, the proboscis plunged into her depths with little mercy as far as possible. “EEP!” Constance gasped as she suddenly felt her hymen tear painfully inside herself, having never felt the sensation of being filled or spread open before. She began wailing as she realised that she wasn’t able to save herself as she had wished for her beloved... Instead she was being **** against her will horribly in this forest to give herself to this creature. The proboscis began retracting and then shoving itself in and out of her roughly, as Constance was struggling for breath, feeling the wind knocked out of her with each thrust. Her arms struggled against the slime pitifully as she began moaning in a mixture of pleasure and pain.

Of course, the proboscis has a purpose and its purpose didn’t involve being kind and gentle for the virgin‘s unfortunate first time. It pushed deeper and began to impact upon her cervix, battering up against it. “ARGH OW OOF OW!” Constance began to nonsensically shout as the slug continued to fuck her mercilessly, painfully battering against her innermost depths. Yet, she felt herself moistening and pleasurable sensations - she was being **** to get off on this! “Please... Stop...?” she moaned as she was confused by the multiple sensations she felt.