Fun with Nitrous

Brian took the tank of NO. There was no mask; Ming Li used it for chemistry, not inhalation. But she had a respirator as well and Brian strapped it on to her face and jammed the tank's plastic tubing into the respirators filter. He cranked up the gas just as the **** scientist's eyes began to flutter back to waking.

"Wha? What happened?" she asked, the sound muffled by the respirator. "What's that smell?"

She reached up and felt the respirator. She pulled it down. Brian pulled it back up with unseen hands. She blinked, confused, and tried to pull it off her face again. Again, Brian returned it. But the gas was working its magic and the topless woman ho longer panicked at the actions of her invisible colleague.

Instead, she giggled.

"Wass going on here?" she asked, bemused.

She reached for the respirator again. Brian grabbed her wrists and directed her hands to her naked tits instead. She squealed at the discovery of her undress and sat up. But then she giggled.

"My clothes fell off!" she exclaimed. ''This is so weird <giggle>"

She made no attempt to remove her hands from her tits. Indeed, she began needing them gently. Her nipples responded appreciatively.

"I am the ghost of the horny lab tech!" he repeated in his spooky voice. "I wasted my life in the lab, never getting laid. In ****, my spirit is consigned to rescue others from my fate!"

Ming Li giggled.

"You're gonna get me laid?" she asked, looking wide-eyed about her for the disembodied voice. "I haven't gotten laid since grad school!"
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"You must get off or my soul will never be at peace!" Brian proclaimed.

Ming Li giggled like a loon. Brian grabbed the hand vortexer. He had often observed that the tapered Teflon tip looked an awful lot like a little dildo. Time to test that theory.

With a flip of a switch, it buzzed to life. Brian chuckled and slid the vibrating device between his colleague’s legs. Her kaki slacks were thick, but Brian rolled it along the giggling, squealing scientist's crotch until he found a spot that really made her squirm and kick. He held the vibrator there and stoked her elsewhere with his free hand. Soon there was a dark wet patch at her crotch.

"Don't stop!" she cried out between gasps and giggles. "I'm so <eep!> close! Wanna come! <giggle> Need to come!''

Brian could certainly sympathize there. He was close to coming in his pants himself!

Should he leave Ming hanging, bring her off manually, or fuck her brains out?