Sitting on a table with a school board in the background, facing the viewer

sitting on a table with a school board in the background, facing the viewer, dangling his legs from the table, completely naked, no panties, a full beautiful pregnant teacher 40 years old. blonde hair is gathered in a ponytail, The board has a poster with a diagram of a vagina. The teacher is showing her body to the students.. she spread her legs wide and covered her crotch with a smartphone, who is holding a phone in his hand. The board has a chalk inscription "Congratulations on the beginning of the academic year!",