Best Friend

I confess,
I steel my 19 year old sisters worn panties to masturbate with them with my best friend steven.
It started a while ago.
We were watching porn on my computer in my bedroom one afternoon and I could see he had a huge stiffie in his pants.
I was hard too and asked if he wanted to jerk off.
He said yes and instantly pulled out his dick.
I’ve seen him naked loads of times but never with a stiffie.
We were both jerking ourself’s when he asked me about my sister,
It’s no secret he likes her and I don’t know if it was just me feeling really horny but I asked him if he would like her panties to help him jerk off .
He said yes so i left the room with my dick still out and went into my sisters bedroom and straight into her wash basket.
There were 3 pairs
All lacy thongs ,two black and one white.
I stole all three and hurried back.
He chose a black pair and studied the white died mess in them and smiled at me as he gave them a sniff,
I swear his dick got bigger the second he inhaled.
He was pumping on his dick hard and told me to try it with one of the other pairs.
It wasn’t normally my thing but seeing how turned on he was I thought what the hell and chose the white ones,
I put those to my nose inhaled,
They smelt of perfume and what must of been pussy.
I am still a virgin and this was the first pussy i had encountered.
I had to admit they smelt amazing and the fact we were both jerking off with my sisters panties were making me horny as hell.
Steven was sniffing one and had the other wrapped around his dick.
I couldn’t hold back much longer and inhaled a huge breath with my nose and mouth pushed hard into my sisters panties and could feel the pressure building and came so hard most of it landed on stevens leg.
I thought he would go crazy he had my cum on him but laughed and said it was his turn and moved closer and pumped harder on his dick and came with a huge moan all over my now semi hard dick and balls with a massive load.
We were both laughing and it felt so warm covered in his cum.
I’m 100% straight but couldn’t help but start jerking again using all his cum as lubricantion,
It was so slippery and wet it didn’t take me long to need to cum again.
Steven held open the panties and told me to cum on them.
He grab my dick with his pantie coveraged hand and jerked me off hard.
I came in seconds.
That was the best jerking session I’ve ever had.
And we have repeated it whenever we get to be home alone many times.