This happened when I was 17 and my sister was 14. I was a super nerdy guy and not very active at all. My sister was very good looking and coming of age
I was sitting watching porn in my room when my sister barged in. Luckily I managed to turn the tv off but the tape was running I didn't know. I had a big hard and was really looking to blast one off. My sister said dinner and turned and walked away. My face was red but I thought I was safe.
At some point near the end of dinner my sister went upstairs. I finished and said I had to go do homework in my room when I really wanted to jerk off. I was a virgin still. I went to my room and there was my sister with my porn on the tv staring in awe. I was about to yell at her but she said shut up and close the door! I did and on the tv this guy was standing over a girl just shooting ropes all over her face and she was on her knees! My sister asked if guys liked that sort of thing? I said I have no clue. She asked if girls did? I said no clue. By now I was rock hard. The video had another scene and the chick was blowing the guy. My sister said, I know guys like that! I didn't know what to say or do.
I asked her can you go now. She laughed I know what you are going to do as soon as I leave and she made a jerk off motion with her hand. I just nodded! Another facial on the tv. Finally she walked out and I ripped my pants off and started stroking. My sister came back in. I dived on the bed trying to cover myself. She said wait don't stop I will make you a deal.......if you let me watch you? you can squirt on my face and as she spoke she knelt down. She explained that way I don't have to let my bf try in case I don't like it.
I stood over her like on tv but the way she looked and nervous I couldn't finish. She said maybe this will help, she took her top off, she had small tits but very perky, I jerked with one hand and felt her tits. Then I was all tense and shot all over her face, she was giggling at first but then I saw a strange look as I shot in her mouth. She spat it out!