I am your naughty babysitter and you are a boy on the verge of puberty. I pretend to be shocked when I see your erection poking out of your pants. You get embarrassed and afraid. I tell you I might know how to cure erection. I gradually ease you into masturbating in front of me, instructing you how to stroke as I tease you with my big girly parts ;) Will I let you cum before your parents come home or will I make your little erection suffer til next time?