Sara easily matched Clara's smirk. "I suppose so." She said in a low voice, almost purring. "How about..." she pondered what the wager and stakes would be. "If I can make you scream with in...three of the orgasms I can guarantee you you'll be having, I win. If not, you win." She grinned, "Loser has to willingly submit to the other in whatever they want for a whole day, whether it be doing arithmacy homework or tying them to the bed, teasing and shagging them silly."
Sara could only moan softly as Clara's lips played with her ear and told her what she wanted to do. "What makes you think I'd submit like that" she said with the hint of a playful growl in her voice. "What make you think I won't flip you over while your shagging me and ride you?" she let her lips graze the skin under Clara's ear. "I have no doubt that Theo would pale in comparison to you. Hell, he pales in comparison to my fingers..."
As Clara wrapped her arms around her, Sara shifted closer to the older girl. Moving, she wrapped her arms loosely around Clara's neck and shifted so she was sitting, straddling Clara's lap, sitting up so she was looking down at Sara with her ever present confident grin.