The glazed look confirmed to Beth she'd successfully pushed Pam ever closer to the taboo of satisfying her escalating sexual desires for her daughter's teenage boyfriend. She'd avoid any further manipulation of events, and just sit back and watch their behavior for the rest of the morning; each almost certainly unable to avoid tempting the other, given their already percolating lust, the close proximity of their lounge chairs and the immodest swimwear Beth had essentially forced them to wear.
*
By the time Pam had climbed from the pool, she was already chastising herself for the perverted behavior she'd allowed Beth to once again orchestrate. Her body, however, was slower...