Part of Vipress wanted to deny her slave. Part of Vipress still considered breaking her word and eating him. But mostly Vipress was lost in her own rapture. Maybe if Brendan wasn't half stoned he would've questioned what was happening further, but as it was he knew what he desperately wanted to have happen next. He didn't care he was human and she was a snake.
"Please mistress..." he begged again. He was still laying on his bed wrapped in Vipress' coils. At her whims.
Vipress brough her face back up against his. And then he felt her coils shift, the tip of her tail working into his underwear like her head had moments before. The size of her tail pushed them lower, along with his pants. He felt the warm, wet spot on her underside sliding closer to its logical destination. At last Vipress' cloaca reached his penis and he slid inside her.
Brendan thrust as best he could and Vipress immediately tighted. She let out a low moan-like hiss into his ear. This continued for only a short time before he felt Vipress quiver and throw her head back again. A moment later, Brendan followed and exploded inside her.