Use To Let My Sister Eat My Pussy.

My younger sister is lesbian i mean full gay all the way. We grew up in a small conservative town where she could never come out publicly. But she did come out to me and I always tried to be a good sister and suport her.
When were if highschool and I was already sexually active with guys she started hitting on me. I am not lesbian or even really bi but having your pussy ate feels good and i felt so bad for her since she had no access to sex and was always masterbating alone in her room.
She use to come to my room and we'd try on outfits, listen to music, and she'd ask me about sex and what i did with guys.
One night we were getting high and goofy around and trading outfits and I had my top off but a bra on and there was a long awkward moment that she was lustfully checking me out and she was touching herself under a blanket. I knew what she was doing and it felt weird even kinda gross because ibam her sister and she was touching herself to me. At that sametime I felt so bad for her because i was having sex all the time but she got nothing but was hontestly hotter then me. Something came over me and I said nothing but took my bra off and exposed my breasts to her. She went wild on her pussy under the blanket not even trying to hide it. I came closer to her so she could see better and sudden she was saying "Oh fuck, Kammy I am gonna cum! Oh fuck, sorry I didn't mean too i am so horny."
I put my finger to her her mouth and sshh her told her "It's ok you need this. I am ok. Let it happen."
She cummed so hard I was glad nobody was home.
I sat beside her on the bed. She was so ashamed she couldn't look at me and she was really on the verge of crying. I had nothing but compassion for her as i asked her "Tiff , as anyone ever kissed you?"
"No. I just can't with a guy and no one knows I'm queer." she responded. I took her blanket away pulled her close and open mouth kissed my own sister. It was sureal.
Sudden i was topless fully making out with my virgin sister and she was all over me touching everything. I felt her hands in my panties opening my legs. I spread to give her easy access as an act on consent and soon she was fingering me and rubbing my clithood. It felt good but I knew she was in heaven so i told her, "Tiif, taste me. My boyfriend says its good. I want to give this to you."
I am not gay but oh my I could not believe so much i had the big O from watching her have the time of her life.
After that we had girl sex a couple times a week all through high scool untill she went to college and got a gf. I tired eating her back but was not at all into it. She basically did what she wanted to me and i watched and ocassional helped her finish with a toy.
This went on all high school and we told no one even to this day.