Naked Science Experiments

Devon James, the hottest professor at the state university, loves doing sexual experiments on young students. It's quite easy for her to find willing participants. She gladly gives extra credit. This experiment involves her volunteer naked, bound to a table, and cock exposed for her to play with. She wants to measure his heart rate every time she does something dirty to him. The next thing she wants to try might not be so enjoyable for the guy. She wants to give him ruined orgasm. It's vital for her research. He's pissed, cursing at his professor. This will only help make his load drop more excruciating. She teases his dick with a firm grip, stopping when he's about to cum. What guy likes a pair of blue balls? When he finally squirts out his load, Devon laughs at his pain. His heart rate is through the roof. Just as she expected. Added: September 10, 2014