The neighbours underwear

[Philleuh]

Hello, this is my first story, half truth half not. So be a little gentle with me.

I'm 24, I live in an apartment with my 23year old wife and my 1year old son. I work from 2pm till 10pm, so I was off in the morning. My wife works from 8am till 4pm. So she was off to work.
My neighbour is a single 40-45year old good looking woman with a son around 8. She works from 10pm till 6am.

This week the hal and doors of our 6 apartments are getting painted. The painter asked us to leave all the doors open. I took a look outside and saw the neigbour leave with her car. The painter was at first floor, so I took my chance to get in my neighbours apartment. Because our apartments all look the same, I know excatly where the bathroom is. So I went straight to it.
I opened her laundry basket and found a g-string. I instantly got a hard one.
So I pulled my hard cock out and started to jerk off and smell at the g-string.
At the moment I was cumming in that g-string the neighbour got back home.

She yelled at me you dirty pervert. I turned red and got scared. I thought she was going to call the cops, but actually me cumming turned her on. She took me to her couch, pushed me in it and started to kiss me heavy.
She stood up and pulled her clothes off. I was already naked. We kissed for 15minutes or more, touching each others bodies. Then she pushed me back, yelling this was wrong. But she couldn't ressist the urge. She wanted to get fucked(She was single since her son was 4). So she got down on my hard cock and started to fuck me. She was fucking me for 2minutes when she already came. We switched from the couch to the bed, I started to fuck her gently, but fucked her harder and harder. At the moment she came for the 2nd time I shot my load in her warm, wet pussy. I kissed her goodbye and went back to my apartment.

At her door I found a load of cum, so I guess the painter enjoyed it too.

Sorry for my bad English, hope you like the story.
Tips appreciated.