The requirements are to stack my sticks at least three feet high, and for the stack to be stable. She finally get's it right and as a reward I let her masturbate to orgasm while telling me about last night's dirty dreams.

I watch her sweat as Marshal teaches her a little Drill and Ceremony style BDSM.

She learns to develop a cyclical rythm when sucking cock, and to tease the frenulm by balancing the tip of the cock on her tongue.