OLM-091 Grandmother and grandson having sex on a hot spring trip

When the grandmother and her grandson went to a hot spring, the grandmother felt a sense of manliness from her grandson's well-grown body and cock. When the grandmother saw her grandson's big cock, her almost-withered sexual desire was revived and she got her pussy wet for the first time in decades! This book contains 3 stories of forbidden sex between a grandmother and her grandson.