First time with both

I was young and I had a girlfriend who I confided a dark secret with, which I had never felt comfortable to tell anyone. She asked what I wanted to tell her and the suspense in the air as I told her was quite thick.
"I've always felt like a woman trapped in my body." I casually said.
"Why did you never tell me?"

"you are the first person I have trusted to tell."
She looked at me for a while, but then told me it was cool, and that I really had the body to pull it off. I was so relieved. She brought me sexy lingerie to try on and it fit, except for in the bust. I didn't care though I even shaved off all my body hair. Eventually one day we started getting into it, and she brought a guy over. We started kissing and she sucked our dicks, first mine, then his, and then both. It felt really good her tight lips going up and down; her tongue playing with the tip.
"Oh yeah keep it coming baby." I moaned.
"You come down here and try." she demanded.
I was shaking heart pounding, but I slowly went down. First grabbing then licking the tip like a lollipop.
"Good now suck that shaft!" she advised.

She started making out with him heavy, and I watched as I slid my lips up and down.
"Oh my god your good; have you done this before?" He asked.
"No she's new to this, who is better?" she inquisitively asked.
"I have to say she has her way." he remarked.
I couldn't stop myself, I loved it. She kept pushing my head up and down. After five minutes I stopped to watch my now naked girlfriend heavily drenching this man.

She looked to me, "spit on it honey make it nice and slippery."
As I finished slobbering on his six inch knob. She sat over his dick. I guided him in and started licking his balls. She started fucking fast and I could no longer lick his salty balls.
Moaning and then looking back, "lick my asshole sweety."
"Yes mam," and like an obediant slut I licked all over her sweet hole. She was getting louder then she sat up at what sounded like a climax. I quickly went to pleasing our guy friend.
"Do you like two sexy girls, honey?" she asked.
"I love you both so much." he said.