As far as societal norms go, a 9/10.

As far as actually being unhealthy? Depends. If this is a sex positive, giving you the tools you need, and being supportive type of thing, i would say this is unconventional but healthy. If it’s some sort of personal involvement or insertion into your sex life, I would say this is very unhealthy.

Your mom getting involved in any sort of sexual topic can be really uncomfortable, but that doesn’t make it wrong, it just needs to be in a healthy, mature, and appropriate way.