I'm now 34 years old. This is about what happened to me back when I was 15 and I ended up getting my first hand job from a girl as well as a feel.
I had gotten home from school and knew my big sister wouldn't be home for over an hour. I had seen this one girl at school that day during PE wearing these tight short shorts and she had really gotten me turned on. I went to my sister's room and got out a catalog she had showing girls in panties. I had it laid out and my pants down using the pictures to get me excited while I jacked off. Just then, my sister's girlfriend walked in!
I quickly stopped and reached to pull my pants up to cover up. I was so embarrassed. But, she said 'It's OK. I know what you're doing'. I still brought my pants up and put them on. She came over and looked at the pictues. She said 'looks like you like legs'. I was all red in the face and couldn't answer. Then, she ask 'Ever feel a girl's legs'? I finally said no. She said 'I bet you'd like to. I know my boyfriend sure does. I also give him hand jobs. Want me to give you one'? Of course, I sure did but was too enbarrassed to answer. She said 'Come on. I know you want me to. All boys want this'. She then put her hand over my cock and started rubbing on it. She said 'I know you want me to' and I let go of my pants and let them fall.
She then took off her skirt and sat on the edge of the bed telling me to sit down by her. I did and she said 'Go ahead. Feel it' pushing her leg next to me. I did and she then reached over wrapping her hand around my cock. Her leg felt so soft as did her hand on me. I soon pumped a big load of cum all over my belly and her hand. I'd never cum so hard or so much in my life.
We then got up and went to the bathroom to clean up. This got to be a regular thing until she moved in with some boyfriend later on. But, I've never forgotten her; my very first.