A Little of Both

Rebecca watched as her mistress was kneeling between her legs, face just inches from her dick which was increasingly demanding attention.

She squirmed as much as she could as her mistress gently blew on the tip, a wide grin spreading on her face as she watched Rebecca react.

The blonde screwed her eyes shut, trying to ignore the sensation, before a sudden thought had her open them again and glance towards the bin in the corner of the room. She heard her mistress chuckle.

''Wondering if there are any other surprises waiting for you?'' She asked.

Rebecca nodded

''Well, sorry to disappoint, it was just mineral water''

Rebecca started to breathe a sigh of relief, but it suddenly caught in her throat as she realized something. The moment of realization was cut off however, by the feeling of her mistresses hands going to work. One reaching up to tweak Rebecca's nipple as the other dragged long nails along her soft thigh. Rebecca felt a moan begin to build in her chest as her mistress' delicate tongue flicked out to brush across the tip of her cock, making Rebecca struggle against invisible bonds in an attempt to pull herself back.

She looked down, seeing her mistress smirk up at her, before darting her tongue out again, this time tapping it on the tip of her aching cock more than once, each time causing Rebecca to struggle.

The Mistress moved forwards, resting her chin next to the base of Rebecca's cock and letting her head lean against the erect flesh

''I think I know a way'' She said, interrupting herself to plant a kiss on the side of the dick ''You could look'' She planted another kiss, this one closer to the swollen head of the blonde's cock ''Even better''

Rebecca didn't respond as her mistress punctuated that last part by wrapping her mouth around the tip of her cock, tongue swirling on the inside of her mouth to drive Rebecca wild. If not for those sensations, she may have noticed the flesh pressing out against her forearms and hands, which were still pinned under her ass. An ass that was slowly creeping towards the sides of her chair.

Unfortunately, she her attention was fully consumed by her mistress starting to bob her head up and down, quickly drawing Rebecca to a point where the impossibility of an orgasm was becoming a problem.

Suddenly though, her mistress stopped and stood up

''There, that's got you all warmed up, you're free to stand if you can'' She said, snapping her fingers and causing Rebecca to suddenly feel her body released from magical paralysis. She immediately tried to raise herself a little off the seat in an attempt to sit without her cock standing so proudly. However, that attempt was foiled as she raised her ass and the chair raised with it, her hips caught against the arms of the chair.

She looked back in frustration and suddenly realized what had happened. A glance at her mistress confirmed that the expansion she had recently undergone had been transferred to Rebecca, leaving her so bottom heavy that her hips were pinched between the arms of the chair, which also kept her hands pinned to her now extremely round ass. Attempts to wiggle her way out quickly proved futile, so she dropped the chair back to the ground again, sitting and pouting at her mistress.

''Now how could I resist those puppy dog eyes'' Her mistress said, moving forwards to place her own hands on the armrests of the chair, levelling her cleavage with Rebecca's face.

''I'll tell you what'' She snapped her fingers, clothes disappearing to leave her completely nude as she dropped down and put her breasts around Rebecca's dick.

''You do something for me, and I'll get you out of the chair''

Rebecca nodded in response