Fucking for science

Ben made his way to the new lab he had built for Gabby entering he smiled seeing the goblin mixing a concoction.

"Ah master good I need your cock," Gabby smiled.

"If you insist I'd love to get at your fat ass," Ben smiled.

"Oh sorry I meant literally I found a way to cure Slpooge addiction all I need is your cum for the prototype so come and sit down," she said, patting a chair.

smiling, Ben sat down and Gabby took out a box.

"This is my latest invention. I haven't named it yet but it's a latex-based sleeve to be out around your cock it will collect your cum for me,'' Gabby explained.

laughing, Ben took one and slid it on.

"Where I'm from they have this, it's called a condom," Ben explained.

"Oh interesting , I'm going to have to ask you more about your homeland latter but for now let's have some fun," she said, dropping her lab coat.

Gabby was a foot taller than the twins, ben lifted her spending her ass he put his cock in her ass and used her like a onahole he came hard filling the condom he pulled out tied it of and threw it on the desk,

"I could go again and use more samples," Gabby asked.

"let's go but this time no condom I want to fuck you till you're dripping with cum from every hole," he lifted her and before she could respond **** his cock down her throat.

Her eyes rolled back her nose leaking he kept it going getting ruffer and ruffer when he felt himself getting close he pulled back till he only had the tip in he came causing cum to spue out her nose turning her around he fucked her pussy causing her to gargle his cum as she tried to tell he kept it up till he came art his point she had passed out but keeping his word he fucked her ass one last time so she leaked cum from each hole.