That is a good place to meet a girl.....moms aren't dumb you know.
Just talk to her. Respect her. Be yourself.
If it is good enough, great, it not, that's how it works most times. You won't be the first guy who hasn't drawn the attention of that flower you have your eye on just like all women weren't able to attract some guy they had their eye on.
Birds and Bees stuff is pretty easy....at least to those of us who and been through it and finally understand how we made it pretty complicated.

I know it is a simple answer you have heard before....maybe because everybody figures it out sooner or later.
Starting relationships has to be easier after 40. By that time you have taken a few lumps, been used a few times, now know that nobody is perfect so when you finally discover the flaw, it isn't a totally annoying shock, everybody has body flaws, the list goes on.....but..that's stuff you will figure out over the next 20 or so years.
Just go with it kid. You will do as well as any of the rest of have.
