Sara had to chuckle at the faults in Clara's spells, small though they were. If her teasing causes someone as skilled as Clara is to mess up charms, it was quite an accomplishment.
The plea from Clara was all it took for Sara to finally show mercy and give in. Slowly, she slipped two fingers into Clara's sex and began to set a steady, but still somewhat teasing pace and made sure to brush Clara's g-spot softly every now and then. Bringing her lips to Clara's cunt, she began to kiss the folds right along her pumping fingers, taking them into her mouth and sucking some as she moved towards Clara's clit.