In the fourth installment of 'BE Grove', an uncanny force animates a lush, 3D landscape, focusing on a pair of unsuspecting, busty sisters. As they frolic in the enchanted woods, their bodies begin to change, breasts and buttocks swelling to impossible proportions. The sisters, initially delighted, soon panic as their clothes strain and tear, exposing their engorged flesh. They stumble upon a hidden altar, where a mysterious entity offers them a choice: succumb to their new, lewd forms or resist and risk eternal torment.