First time wearing panties

There weren't many k**s my age in my neighborhood. I made friends with the daughter of my mother's best friend. She was a tomboy and liked doing the things I did.

One day my mom and I were at her house for a party. I had to pee but someone was in the bathroom. People were in the backyard, so I couldn't pee there. By the time they came out of the bathroom I peed a little in my pants. I asked my friend to come with me to my house to change, she said come to my room. She opened a drawer in the dresser and handed me a pair of her panties. I told her I couldn't wear girls underwear, what if someone found out. She said no one will know. With no choice I pulled down my pants and underwear. She pointed and asked, what's that. I said it was my peepee. I don't have one she said. Let me see I said. She pulled her pants down and sure enough, there was a slit where a sick should've been.
I put her panties on and pulled up my pants. Her panties felt funny and rubbed my little dick a certain way. After a few minutes my little dick started to stiffen.
That was the first time I remember getting a hard on.