Shirakawa Mai takes on the Cowgirl Time Trial: if she can make the man cum while riding him within five minutes, she wins; if not, she faces a penalty. Since the clock begins only after penetration, Mai first uses a blowjob to prime his cock and bring him as close as possible. Once he is rock hard, she climbs on top and rides with powerful vertical and side-to-side hip movements. Can she finish him before time runs out? Watch to discover the result.