Bigger question...why would anyone care? Atleast Monica was an adult, yeah you could probably make a case for work place harassment but that's about it.
And before anyone says he was impeached for it, no. He was asked by congress if he had sexual relations with Monica. He said no. Evidence was revealed he had atleast a blow job, based on the stain on her blue dress. He was impeached for lying to congress and won basically by claiming a blow job wasn't "sexual relations".