mothers spanking sons

looking for some stories of sons spending quality time across moms lap

I've written a few of those - but most of my F/M stories involve non-maternal spankings. Aunts, Friends' mothers, that sort of thing.

those are good any naughty boy across a ladies lap

A few of my favorites - in no particular order - most of these are consensual in some manner but all are mother/son:

1) The Music by John Graves
2) Fate Takes a Hand by KFR
3) Finding the Right Sound by Katie B
4) Kill and Cure by Tapada
5) The Hairbrush and the Paddle by Esskay (F/m and F/f)
6) The Three Bs by Adam Kessler

There are no shortage of others on this excellent site though!

Definitely. Some good ones here.

Shameless self-promotion: it's not my main area of focus but I have written a few

Blame it on Miss July
Caught Watching My Stepmother Spank My Dad (multi-generational)
A Fool & His Underwear are Soon Parted
He Left Porn on Mom's Computer
Holding Down My Little Brother
I'm My Own Worst Enemy
A Mother is Disgraced by an Undisciplined Child
Mouth Soaped and Butt Paddled
Providing an Outlet for Mom

I'm sure there are others but this is a start...

If you want something a little more extreme. I wrote two. Hamm it up. & Hamm on Rye

Both in front of the boy's girlfriend who helps.

I am more into any stories of spanking with her hand

A few of penmask's A Wish Fulfilled fit this, and my own continuation of the story does as well.

Thomas Bruns has a couple too.
Host Mother Knows Best and
A Need Fulfilled