Bisexual fun

When I was bisexual I had a girlfriend who knew nothing about that side of me. All she knew was that I loved wearing panties everyday. At first she was a little taken aback with it but came around. She would even buy me the kind of panties I liked wearing. We were like night and day in our statures. I'm 5'2 and weigh like 140 and she was like 6'4 and weighed like 420. Well went camping one week end and we took my friend who also loved wearing panties. He was always fucking me bareback. We kind of walked away from the camping area and started talking. I told him I wish he could fuck me. I didn't know my gf was that close by and she over heard us talking. She walks over to us and tells us to go ahead and have sex. It was kind of weird and she said don't worry about it. I might even join you two. She heard when I told him I wish he would fuck me. We all went back to the tent and him and I stripped down to our panties, pulled out a sleeping bag and laid it by the campfire. We started hugging and kissing and playing with each other. We got in the 69 position and started sucking each other. I ate his ass, he ate mine and back to sucking. While I was sucking him my gf got her dildo out and shoved it in my ass. It was an 18 inch dildo and she put like 16 inch's of in my ass. After a while of that my friend put me on my back and put my legs on his shoulders and literally shoved his big hard cock in my ass and fucked me till he came in me. I pushed his cum out so my gf could see and that turned her on. She sucked all of his cum out of my ass then kissed me and fed it all to me. It was a 3 day camping trip and he was fucking me 6 to 7 times a day. By surprise my gf pulled out a two piece bikini and had me wear it all week end long