Adjective
scintillating - Describing someone or something that is exceptionally witty and entertaining, and is intellectually or emotinally stimulating.
Her scintillating conversation captivated those she talked to at the dinner party, leaving them laughing and enjoying themseles.
promiscuous - Lacking discretion or selectivity, especially in choosing relationships or associates; mixing or combining things randomly.
The character in the novel was portrayed as promiscuous, frequently engaging in relationships without commitment or emotional attachment.