No wonder you talked yourself out of having sex. You're literally a walking panic attack.

Chill out man. Women aren't stupid. If she agrees to come by your place she agrees to the possible implications. That doesn't mean she agreed to having sex. She just agreed to the possibility of having sex.

Have a bottle of wine, a cocktail, a blunt or all of them around. Hug her when she comes in. Grab her hand and "inspect her jewelry". Touch her as you talk. Flirt and be sexual.
But don't be sexual cavemen style like "Ayooo gurl you want sum fuck? come on yo bf aint ever find out".

Seduce her. And for the love of god don't ask for permission to do shit.

And no a kiss is not too damn personal. Sticking your dick inside of her is personal.

Have you never done this before?

_________________
I know my place. It's me on top of the world.

My in depth texting & dating guide.
There's no such thing as shit-tests.
How to keep a girl.

Oh, you are 19, that explains a lot.

_________________
They call me the cat whisperer, cause I know exactly what the pussy needs.

I was 19 not too long ago.

Him being 15 would explain a lot.

_________________
I know my place. It's me on top of the world.

My in depth texting & dating guide.
There's no such thing as shit-tests.
How to keep a girl.