Synonyms for Voluptuousness (same or very similar meaning)
WordNet sense 1 (the quality of being attractive and exciting (especially sexually exciting)):
hot stuffWordNet sense 2 (the property of being lush and abundant and a pleasure to the senses):
lushness, luxurianceWordNet sense 3 (the quality of having a well-rounded body):
curvaceousness, shapelinessFrom the ODE community, based on WordNetadd/edit