I think it is very erotic and when done with my present wife or my buddy's wife it always kept my cock hard for more play time.
Lust to the 3rd degree. If I didnt kiss her after a bj, it would have been my last. She used to swallow or let it fall out of her mouth and all over me. The first was when she kissed me with a huge mouthful of cum and pushed it into my mouth with her tongue. We wrestled tonge in the slippery cum until it was all over our faces.