large lecture hall, two nude busty woman, female university professor 50 years and 45 years explaining economics during a power-point presentation, they stand with their legs wide apart, gap between their thighs, tummy, (knees apart:1.5), open gray jacket revealing, black semi-transparent lace bra, (large saggy breasts:1.6), black nylon stockings, black shoes, (panties down:1.8), (bottom less:1.7), (lecture:1.5), (students:1.5), (very hairy pubic:1.8), view from afar, full-length models