I spot a snake-like creature on the ground and move closer to take a better look. Suddenly, I feel frozen and fall to my knees. The invisible alien starts slithering slowly towards me and there’s nothing I can do except move my head. I watch in horror as it starts slowly slithering up towards me, wrapping around my body as if it’s examining me, until it gets to my mouth. It enters my mouth and slowly makes its way down my throat. As it does this, it's making me really horny. Once it fully enters my body, I fall back flat on the ground and my body starts to convulse. I slowly get up in a daze, wondering why I was on the floor since i wasn't conscious while convulsing. Suddenly I feel something moving around inside my stomach. It’s the alien! I get horny again as I get pleasure from it, feeling it swimming around inside me.